Add additionalFormats to fallback and make formats public

[Amir-P]

Based on #372.

Made current auto formats public for users to be able to cherrypick.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.94%. Comparing base (e60be6c) to head (cb8fa8a).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #415   +/-   ##
=======================================
  Coverage   87.94%   87.94%           
=======================================
  Files          62       62           
  Lines       10363    10364    +1     
=======================================
+ Hits         9114     9115    +1     
  Misses       1249     1249           

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[amantoux]

LGTM
I guess the natice autoformats are made public to allow users to cherrypick
It would be nice to add a comment in the PR (to avoid guessing the reason :))

[amantoux]

Maybe add test?

[Amir-P]

Maybe add test?

I found it unnecessary, but if you think it's needed I can add the test too. @amantoux

[amantoux]

Maybe add test?

I found it unnecessary, but if you think it's needed I can add the test too. @amantoux

If not too long to write, I think it is worth

[amantoux]

LGTM