Next major release

[Baptouuuu]

This work is in preparation for the testing framework.

This PR will stay in this state until the whole innmind/foundation new API is stable enough to build innmind/testing.

[codecov]

Codecov Report

❌ Patch coverage is 94.28571% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.16%. Comparing base (44d2a7b) to head (b9ae099).
⚠️ Report is 10 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/Halt.php	81.81%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop      #16      +/-   ##
=============================================
+ Coverage      72.22%   75.16%   +2.94%     
- Complexity        20       29       +9     
=============================================
  Files              9       12       +3     
  Lines            144      149       +5     
=============================================
+ Hits             104      112       +8     
+ Misses            40       37       -3     

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