KLayout Plugin: Library for Plugins

• This is intended as a common utility library for our IIC KLayout Plugins:
  • https://github.com/iic-jku/klayout-align-tool
  • https://github.com/iic-jku/klayout-move-tool
  • https://github.com/iic-jku/klayout-pin-tool
  • https://github.com/iic-jku/klayout-layer-shortcuts
  • https://github.com/iic-jku/klayout-auto-backup
  • https://github.com/iic-jku/klayout-library-manager

This add-on is automatically installed, as it is declared as a dependency in the grain.xml of plugins re-using it.