Bridge standup script + Flow Port & Migrationnet prep

[sisyphusSmiling]

Closes: #75

Description

• Adds a standup script in Go using Overflow to execute all steps needed for bridge deployment.
• Configures flow.json for use on Migrationnet
• Adds transactions and scripts useful for implementation on Flow Port
  • Transfer ERC721 transaction
  • Transfer ERC20 transaction
  • Dynamic Flow transfer transaction, sending to either Flow or EVM address sourcing primarily form target VM balance

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For contributor use:

• Targeted PR against main branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the standards mentioned here.
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.19%. Comparing base (428634e) to head (7e8d4df).
Report is 140 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #76      +/-   ##
==========================================
+ Coverage   82.88%   86.19%   +3.31%     
==========================================
  Files          18       18              
  Lines         818      884      +66     
==========================================
+ Hits          678      762      +84     
+ Misses        140      122      -18     

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