feat: support commit-analyzer presets

[codymaust]

• feat: support different commit-analyzer presets

purpose

• adding support for conventionalcommits

this doesn't preclude the other presets, but this is the one specifically that i am after

caveats

• this does not support the presetConfig option, meaning we can only provide the most basic implementation. this is also the case for angular, which has been the default up to this point

full list of supported presets

closes #226 closes #208 closes #80

[andylolz]

Oh – this is really nice! It’s a much better solution than #209, since this won’t by default change existing behaviour.

@mathieudutour what do you think? Would you consider merging this?

[bmtcril]

This would be great for us as well!