Support all formats

[mr-martian]

• [x] lexd
• [x] lexc
  • [x] make parser
• [x] twol
• [x] CG
• [x] *dix
• [x] t*x
• [x] rtx
• [x] lrx
• [x] modes

[mr-martian]

Incorporate functionality from https://gitlab.com/jpsinghgoud/apertium-lint/-/tree/master ?

There's also some ideas at https://wiki.apertium.org/wiki/Ideas_for_Google_Summer_of_Code/lint_for_Apertium and https://wiki.apertium.org/wiki/Lint

[mr-martian]

Dix can check for duplicate or unused paradigms

[mr-martian]

There is now at least one check for each main source file type.