• Important While the API witll detect and decorate the weight type based on V1 or V2, the default Weight type (used in runtime calls and RPCs) has not been swapped from the old u64 variant. This means that on new chains using WeightV2, the TS decorated type will still reflect the old version.

Changes:

• Adjust handling of Weight type for V2 structures
• Add alis definitions for Weight{V1, V2} (used for type overrides)
• Cater for weight v2 (along with v1 pass-through) extrinsics in api-contract
• Update to latest Substrate, Polkadot & Kusama metadata