[Scriptnode] Copy/Pasting Nodes Is Broken

[aaronventure]

When you copy a node, or import a snippet from the clipboard, HISE will:

• paste the nodes with the exact same ID
• apply the connections from the clipboard based on ID,
  This breaks the core ScriptNode functionality where each parameter can only be modulated by one cable at a time.
  

What should happen is:

• HISE should check what the new IDs will be for the pasted nodes
• change internal (within the copied nodes) connections so that they refer to the new IDs
• keep any incoming connections from the outside, e.g. from the main parameters or other nodes
• break any outgoing connections that go beyond the copy scope

The lack of proper implementation of this has some severe effects on the workflow for complicated networks:

• it's impossible to duplicate more complex modchains, effectively having you go through the entire setup any time you need a copy
• if you already developed a modchain within the network, but it grew to be too big, it's not possible to "move it to a separate file" like you can do with code in the code editor, so that you can then reimport it as a project node, because the connections will not copy over properly