Pre-Release 3.0.0a2

[Argmaster]

PyGerber version 3.0.0a2 will continue incremental changes on top of 3.0.0a1.

Issues pending for 3.0.0:

• 278

• 245

• 303

• 305

Known TODO:

• [x] Move gerberx3 -> gerber - there is no need to overspecify + this is a lie since this code also handles Gerber X2 etc.
• [x] Improve public formatter API
• [x] Update pygerber.gerberx3.api to use new tools #302
  • [x] Trash the old design
  • [x] Implement style applying in pillow vm
  • [x] Add pillow API implementation
  • [x] Implement Project handling
• [x] Add examples for use of builder APIs
• [x] Add examples for use of convinience API
• [x] Add docs for use of convinience API
• [x] Add docs for AST builder API
• [x] Add a way to extract image box from compiler / vm
• [x] 90%+ coverage (determine which parts need tests)
• [x] Move builders to separate package pygerber.builders
• [x] Add line drawing to AST builder
• [x] Remove parser2, renderer2 etc. modules