[WIP] Distribution-based dataset creator

[fivosts]

Fixes #{issue number}

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 7.14286% with 13 lines in your changes missing coverage. Please review.

Project coverage is 88.96%. Comparing base (48c0ec5) to head (71b53ad).
Report is 163 commits behind head on development.

Files with missing lines	Patch %	Lines
compiler_gym/datasets/datasets.py	7.14%	13 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           development     #748      +/-   ##
===============================================
+ Coverage        88.73%   88.96%   +0.23%     
===============================================
  Files              130      130              
  Lines             7864     7878      +14     
===============================================
+ Hits              6978     7009      +31     
+ Misses             886      869      -17     

Files with missing lines	Coverage Δ
compiler_gym/datasets/datasets.py	82.30% <7.14%> (-10.63%)	⬇️

... and 4 files with indirect coverage changes

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