Add PyGerber 3 Parser implementation

[Argmaster]

Major rewrite of parser infrastructure of PyGerber for 3.0.0 release

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 94.91423% with 169 lines in your changes missing coverage. Please review.

Project coverage is 86.79%. Comparing base (0b40481) to head (4d16851). Report is 94 commits behind head on feature/pygerber-3-vm.

Files	Patch %	Lines
...rc/pygerber/gerberx3/ast/state_tracking_visitor.py	77.37%	74 Missing :warning:
src/pygerber/gerberx3/formatter.py	96.38%	30 Missing :warning:
src/pygerber/gerberx3/ast/nodes/attribute/TO.py	89.30%	17 Missing :warning:
src/pygerber/gerberx3/ast/nodes/attribute/TF.py	90.65%	10 Missing :warning:
src/pygerber/gerberx3/ast/ast_visitor.py	98.20%	5 Missing :warning:
src/pygerber/gerberx3/ast/errors.py	73.68%	5 Missing :warning:
src/pygerber/gerberx3/formatter_presets.py	0.00%	5 Missing :warning:
...c/pygerber/gerberx3/ast/expression_eval_visitor.py	92.15%	4 Missing :warning:
src/pygerber/gerberx3/ast/nodes/attribute/TA.py	94.33%	3 Missing :warning:
src/pygerber/gerberx3/ast/nodes/base.py	89.28%	3 Missing :warning:
... and 8 more

Additional details and impacted files

@@                    Coverage Diff                    @@
##           feature/pygerber-3-vm     #256      +/-   ##
=========================================================
+ Coverage                  84.74%   86.79%   +2.05%     
=========================================================
  Files                        203      292      +89     
  Lines                       8100    10707    +2607     
=========================================================
+ Hits                        6864     9293    +2429     
- Misses                      1236     1414     +178     

Flag	Coverage Δ
unittests	86.79% <94.91%> (+2.05%)	:arrow_up:

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