General release for Jul2021

Contains a wide variety of improvements over 0.0.2:

• OSMV (the codename for the alpha) has now internally been renamed to OSC, or OpenSim Creator. The official repository is now at https://github.com/ComputationalBiomechanicsLab/opensim-creator
  • This is mostly a branding change, but also renames the C++ namespaces from osmv to osc
  • OSC uses the OpenSim logo, rather than the custom one that was used in earlier versions
• All releases of the software now use OpenSim 4.2
  • This adds support for things like ScapulothoracicJoint
  • It also makes simulations slightly faster (typically, 20-40 %)
  • Mac users may (needs verification) need to install gfortran: please report installation issues on fresh mac products
• OpenSim's log now prints to the OSC log panel
  • This means any warnings, error messages, etc. from OpenSim can be seen in the UI
• Component default values are now improved
  • These are the property values components have when added through the UI
  • This is an ongoing process. Some components (e.g. ContactSphere) still have poor defaults (e.g. radius=0.0)
• Fixed a bug where keybinds could be triggered, even when typing something into an input textbox
  • This could occasionally lead to annoying situations. E.g. typing R (reload) into an input box would reload the model
• Modal dialogs no longer trigger popups/changes in UI elements below the dialog
  • E.g. mousing over something in a modal should no longer trigger tooltips, 3D scene changes, etc. below the modal
• Simulation states are now saved
  • This means that you can retrospectively view the entire simulation with an animation scrubber
  • It also means you can retrospectively plot outputs from a previously-ran simulation
  • The reporting interval is deterministic, with a fixed time step, so that data+animations are consistent (e.g. datapoints in plots will be evenly spaced)
  • Simulations make their own independent copy of a model before running. This means that you can keep editing a model while a simulation runs on older versions of the model.
• Simulations are now more configurable
  • This means that users can change the integrator, minimum step size, maximum step size, etc. of a simulation
• Multiple simulations can now be ran concurrently
  • The UI provides a way for selecting which simulation is currently being viewed
  • There is currently no limit, or queuing, on the parallelism - try not to let your computer explode
• Simulation metadata--eg. the number of integration steps, error rates, etc.--is now displayed on the simulation screen with basic documentation explaining each plot
• Any plotted outputs can be directly exported to a CSV file
  • Choose to plot an output, view a simulation, go to the "outputs" tab: there's now a "Export to CSV" button
• The UI is now uses custom style colors, which are darker and less blue than the ImGui defaults
• The UI now uses FontAwesome for icon support. FontAwesome icons have been added to the most commonly used actions in the UI
• The component hierarchy viewer now supports expanding and contracting nodes
• Switching between editing and simulation mode no longer wipes the undo/redo history of the edited model
• The "About" menu has been tidied up and now contains more information + documentation.
• The "Experiments" screen (accessed via the About menu) now prompts the user to select an experimental feature
  • This is because we plan on using this space to ship experimental features to production early.
• Added "Windows" tab to the main menu
  • Lets users enable/disable UI panels
  • Multiple 3D viewers can be enabled through this
  • Currently does not save which panels were enabled/disabled between UI boots (a future version will support this)
• The splash screen now contains obvious-looking "New" and "Open" buttons right above the main content
  • This is so that new users don't have to search around in the "File" tab of the main menu
• Example filenames are now sorted case-insensitively, so that they appear to be logically alphabetical (e.g. A, a, B b vs. A B a b)
• 3D viewers now use Blender-like keybindings
  • e.g. Left/Right click interact with things. Middle mouse for swiveling, CTRL+middle mouse to pan, etc.
  • This is because it's fairly common for model builders to also be using blender
• You can now add muscles to a model through the UI
  • Requires selecting N>1 bodies/frames in the model
  • Currently, there is no support for rearranging the attachment order
• You can now add geometry to a body/frame
  • Previously, you could assign geometry to a body/frame, which would overwrite any previous assignments
  • Adding enables adding multiple pieces of geometry to a single body/frame
  • You can delete geometry by pressing DEL while geometry is selected
• Added support for attaching analytical geometry (cubes, spheres, etc.)
  • The benefit of using these is that the resulting model file is less dependent on external mesh files (the geometry is generated in-code by OSC)
• The loading screen now has a progress bar
  • The progress bar always marches forward and is no indication of actual progress: purely there to show the UI is doing something
• Experimental: Added mesh importer wizard
  • Enables importing multiple mesh files into a 3D scene without having to first build an OpenSim model
  • Users can then rearrange the meshes in 3D space and assign bodies/joints to them while moving things around in a global, Blender-like, coordinate system
  • Once the user has set everything up in this wizard, it automatically generates an OpenSim model from the assignments
  • This is work in progress. It requires further development, but may still save a significant amount of time over manually building the model step-by-step through the main editor UI
• Experimental: You can now plot subfields of an output, rather than only being able to plot double value types
  • Practically, this means that you can plot a Vec3's x, y, or z coordinates
  • Experimental, because the output names etc. need to be fixed when exporting the resulting (subfield) output to a CSV file