feat(interchain-token-service): add interchain token executable

[milapsheth]

AXE-6871

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.66667% with 3 lines in your changes missing coverage. Please review.

Project coverage is 93.88%. Comparing base (ff1f206) to head (35fcb52).

Files with missing lines	Patch %	Lines
...acts/interchain-token-service/src/token_handler.rs	66.66%	2 Missing ⚠️
contracts/interchain-token-service/src/contract.rs	96.15%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #120      +/-   ##
==========================================
+ Coverage   93.84%   93.88%   +0.03%     
==========================================
  Files          50       51       +1     
  Lines        2877     2895      +18     
==========================================
+ Hits         2700     2718      +18     
  Misses        177      177              

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