Add support for generics

[myshkin5]

No description provided.

[myshkin5]

Fixes #114

[codecov]

Codecov Report

Attention: Patch coverage is 91.92825% with 18 lines in your changes are missing coverage. Please review.

Project coverage is 92.14%. Comparing base (91815f4) to head (81f51ce).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #113      +/-   ##
==========================================
- Coverage   92.17%   92.14%   -0.04%     
==========================================
  Files          16       17       +1     
  Lines        3107     3222     +115     
==========================================
+ Hits         2864     2969     +105     
- Misses        185      196      +11     
+ Partials       58       57       -1     

Files	Coverage Δ
ast/dsl.go	100.00% <100.00%> (ø)
generator/converter.go	95.43% <100.00%> (+0.11%)	⬆️
generator/moqgen.go	91.72% <100.00%> (ø)
generator/testmoqs/types.go	0.00% <0.00%> (ø)
pkg/testmoqs/types.go	0.00% <0.00%> (ø)
ast/cache.go	87.31% <93.67%> (+1.89%)	⬆️
ast/testpkgs/noexport/generics.go	0.00% <0.00%> (ø)