Additional 712 utils for SigMint & Forwarder

[0xFirekeeper]

PR-Codex overview

This PR introduces methods to generate signatures for different token mint requests using EIP712.

Detailed summary

• Added methods to generate signatures for TokenERC20, TokenERC721, and TokenERC1155 mint requests
• Implemented typed definitions for each token mint request type
• Updated method signatures in EIP712.cs and added necessary logic in ContractTypes.cs

The following files were skipped due to too many changes: Thirdweb/Thirdweb.Wallets/EIP712.cs

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.91%. Comparing base (b9f1792) to head (0e6e77e).

❗ Current head 0e6e77e differs from pull request most recent head fa1f681

Please upload reports for the commit fa1f681 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #23      +/-   ##
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+ Coverage   91.28%   91.91%   +0.63%     
==========================================
  Files          17       18       +1     
  Lines        1377     1485     +108     
  Branches      138      138              
==========================================
+ Hits         1257     1365     +108     
  Misses         94       94              
  Partials       26       26              

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