interpreter: (onnx) Add operations for ONNX model MNIST targeting

[kayode-gif]

resolves #2340

[codecov]

Codecov Report

Attention: Patch coverage is 93.54839% with 24 lines in your changes are missing coverage. Please review.

Project coverage is 89.62%. Comparing base (6be7662) to head (2bc8d87).
Report is 4 commits behind head on main.

Files	Patch %	Lines
xdsl/interpreters/onnx.py	80.80%	18 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2341      +/-   ##
==========================================
+ Coverage   89.56%   89.62%   +0.06%     
==========================================
  Files         337      339       +2     
  Lines       40450    40821     +371     
  Branches     6031     6064      +33     
==========================================
+ Hits        36230    36587     +357     
- Misses       3347     3352       +5     
- Partials      873      882       +9     

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[kayode-gif]

@superlopuh This is a bigger PR than normal, not so sure of some implementations such as reshape and maxpoolsingleout

[superlopuh]

It would make it easier to review and approve each bit if you split them for sure

[kayode-gif]

It would make it easier to review and approve each bit if you split them for sure

sure, ill create seperate branches rn :)