Feat/java intent contracts

[0ptimizerr]

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version: <log entry>

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• I have performed a self-review of my own code
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Please review the CONTRIBUTING.md file for detailed contributing guidelines.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.51%. Comparing base (c7dae72) to head (54fc14b).
Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main       #8      +/-   ##
============================================
- Coverage     89.62%   89.51%   -0.12%     
  Complexity       77       77              
============================================
  Files            39       39              
  Lines          2275     2307      +32     
  Branches         37       37              
============================================
+ Hits           2039     2065      +26     
- Misses          219      225       +6     
  Partials         17       17              

Flag	Coverage Δ
java	85.60% <ø> (ø)
solidity	86.11% <ø> (-1.39%)	⬇️

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see 4 files with indirect coverage changes

[AntonAndell]

Take a look at the
https://github.com/icon-project/IIPs/blob/master/IIPS/iip-2.md
and
https://github.com/icon-project/ICON-Projects-Planning/blob/main/adr/Intents.md

This seems to be a translations from solidity. but this is not a evm chain and works differently.
Token deposits need to be via tokenFallback. Tokens have no transfer from or allowance.
So all logic pertaining to permit2 can be removed.