Options expansion

[BrendanParmer]

Features

• NodeToPython now exposes more options
  • Script and addon mode have been reworked. They are now set in the options panel, and each mode exposes the appropriate settings
  • Option to include import statements (Setting to include import statements in script mode #101)
  • Including default, min, and max values for group inputs and outputs is now optional
  • Setting node dimensions is now optional
  • Input sockets can now be skipped if they are unavailable (option defaults to skip)
  • bl_info can now be filled in with user-set parameters
  • The generated add-on installation location can now be set using its Python ID, defaulting to NODE_MT_add (Better default or option to set generated add-on operator location #80)

Fixes

• Images without valid data now throw warnings and don't try to save in add-on mode

Docs

• File permission explanation is now included in the manifest file