Std-lib support for ZK opcodes

[bitzoic]

Description

This PR adds support for the ecop and epar opcodes in the std-lib. It also introduces the Point2D and Scalar type support cryptographic operations.

The new crypto module follows the same format as developed in #5747 which is still yet to come, ensuring compatibility. The Point2D and Scalar types also use Bytes under the hood to ensure future curves with points larger than 32 bytes are still supported.

Checklist

• I have linked to any relevant issues.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation where relevant (API docs, the reference, and the Sway book).
  • If my change requires substantial documentation changes, I have requested support from the DevRel team
• I have added tests that prove my fix is effective or that my feature works.
• I have added (or requested a maintainer to add) the necessary Breaking* or New Feature labels where relevant.
• I have done my best to ensure that my PR adheres to the Fuel Labs Code Review Standards.
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