Near future additions

[jspaezp]

1. Formalize the concept of transition
   2. [ ] Allow transition extraction ...
2. Add support for ion mobility
3. improve support for DIA data
4. refactor the .pin adapter to conform to the current sage .pin files ....
   1. check the mokapot output of that .pin
5. Config validation
6. variable modifications ...
7. Add better support for "delta_mass" modification mode