Enabling newer modules

[csjones]

🧃

[what-the-diff]

PR Summary

• New module activation option in Package Configuration
  A definition for "ENABLE_MODULE_ELLSWIFT" was added in Package.swift. This provides an option to activate a new module which could extend functionality.

• New Files for Enhancing Existing Functionality
  New files namely secp256k1_ellswift.h and main_impl.h were added. These are included in the secp256k1_bindings/include and src/modules/ellswift folders respectively, suggesting changes in existing functionality or module integration.

• Adjustments to Object Identifiers
  Some identifiers in ObjectIdentifier.swift have seen changes. Identifiers are usually used to distinguish unique objects and changes mean that object handling is being refined.

• Large Addition of Files for a New or Updated Feature
  Numerous files have been added to the zkp_bindings/include and src/modules. These include secp256k1_bppp.h, secp256k1_ellswift.h, secp256k1_schnorrsig_halfagg.h, bppp_norm_product_impl.h, bppp_transcript_impl.h, bppp_util.h, main.h, main_impl.h, ellswift/main_impl.h, and schnorrsig_halfagg/main_impl.h. This suggests a significant change or addition, such as a new feature or major update.

• Update on Test Sequences
  Changes were made to the array count in secp256k1Tests.swift, which indicates an adjustment of testing scenarios. This helps ensure our software continues to perform correctly after these changes.