Preparation for modularization

• Code reorganization
  • Make geometry modular and independent to the network structure representation by using d3-like chain and mutable functions (this should prepare the code for dynamic networks)
  • Allow to resort the geometry according to a certain criteria
  • Enable filtering of nodes or edges via sorting geometry and masking (may need to maintain the original indices for picking)
• Proper camera and interpolator implementation
• Improvements to the example interface
  • Showcase setting edge properties (colors, width) independently of node properties.
  • Showcase filter by property (using range)
  • Showcase log-based colormaps