feat(blockifier): add entry point execution logic for native

[rodrigo-pino]

This is a newer version of #622 (which was a copy of #551) with addressed comments and updated git history.

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This change is 

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 88 lines in your changes missing coverage. Please review.

Project coverage is 68.28%. Comparing base (8d8ec18) to head (03c4f3c).

Files with missing lines	Patch %	Lines
...fier/src/execution/native/entry_point_execution.rs	0.00%	80 Missing ⚠️
crates/blockifier/src/execution/execution_utils.rs	0.00%	8 Missing ⚠️

Additional details and impacted files

@@                        Coverage Diff                         @@
##           rdr/add-native-syscall-handler    #1158      +/-   ##
==================================================================
- Coverage                           68.78%   68.28%   -0.51%     
==================================================================
  Files                                  90       91       +1     
  Lines                               11697    11783      +86     
  Branches                            11697    11783      +86     
==================================================================
  Hits                                 8046     8046              
- Misses                               3272     3358      +86     
  Partials                              379      379              

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