ESSOptimizer: Check inputs and check stopping criteria more frequently

[dweindl]

• Ensure we have some stopping criterion to not run infinitely long
• Avoid exceeding stopping criteria by checking them more frequently

[codecov-commenter]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (f944d3c) 82.93% compared to head (b178187) 82.90%.

Files	Patch %	Lines
pypesto/optimize/ess/ess.py	69.23%	4 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1176      +/-   ##
===========================================
- Coverage    82.93%   82.90%   -0.04%     
===========================================
  Files          148      148              
  Lines        11693    11704      +11     
===========================================
+ Hits          9698     9703       +5     
- Misses        1995     2001       +6     

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