v9.13.1

Contributed:

• Add support for V3 of TransactionPaymentApi (Thanks to https://github.com/notlesh)

Changes:

• Adjust Weight alias detection (moved from PortableRegistry -> Registry)
• Move default (typegen) weight alias to WeightV2 (does not affect runtime detection)
• Prepare metadata docs from chain generation for future cli arguments
• Add base type object for (future) composite types
• Apply additional JSDoc comments into PortableRegistry
• Update to latest Polkadot, Kusama & Substrate metadata