Flytekit Rust entrypoint

[kumare3]

Tracking issue

• Faster performance - faster startup. In limited testing more than 3.8x speedup
• Smaller footprint - our goal is to remove object-store dependencies and replace with rust
• Also remove dependency on grpc in python and only replace with rust

This also introduces rust more wholistically in flytekit

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.71%. Comparing base (d32ce8f) to head (d34ce56). Report is 27 commits behind head on master.

:exclamation: Current head d34ce56 differs from pull request most recent head 06752b3. Consider uploading reports for the commit 06752b3 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2307       +/-   ##
===========================================
+ Coverage   75.95%   95.71%   +19.75%     
===========================================
  Files         181       19      -162     
  Lines       18295      560    -17735     
  Branches     3788        0     -3788     
===========================================
- Hits        13896      536    -13360     
+ Misses       3807       24     -3783     
+ Partials      592        0      -592     

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[kumare3]

@vlad-ivanov-name thank you for all the comments. As you can tell I am complete newbie and I will definitely try to adapt all your suggestions. If you think you can take over the PR and improve it - please feel free too :) I would love to hand it over