v15.0.1

Breaking Changes:

• Allow external signers to modify the payload (#6030) (Thanks to https://github.com/Tbaut)
  • Add allowCallDataAlteration to SignatureOptions, and SignerOptions. This will default to true when its not inputted. This is strictly tied to signing payloads via external signers.

Contributed:

• fix(ExtrinsicPayload): decode assetId with and without option (#6037) (Thanks to https://github.com/carlosala)

Changes:

• Adjust ExtrinsicV5 to fit current spec (#6029)
  • This removes the signed functionality for ExtrinsicV5 since it is no longer supported
• Update docs for WsProvider, and RpcCore (#6031)
• Add testing for assetId access from ExtrinsicPayload (#6033)
• Update Substrate types to 1.16.2 (#6034)