v3.4.1

Upgrade priority: Low. Fixes for parachain types, .entries() (with no values) and event.is(...) checks, users of these interfaces will have benefit.

• Breaking change The derive.chain.{getBlock, subscribeNewBlocks} now return SignedBlockExtended, all with the actual extrinsics and events mapped. Users of the latter interface should take note.

Contributed:

• Fix SessionKeys{6-9} definitions (Thanks to https://github.com/icodezjb)
• Support Vec<(a, b)> in enums (Thanks to https://github.com/monitz87)
• Add motions to bounty derive (Thanks to https://github.com/ekowalsk)

Changes:

• derive.chain.getBlock() now maps events to extrinsics via .extrinsics getter
• Ensure dispatchInfo is extracted on failed extrinsics (getBlock derive)
• Allow specification of additional signed extrinsic via API options
• Add missing parachain types, ParaGenesisArgs
• Correct EthTransaction type (as per the correct cargo crate)
• Update with latest contract types for Substrate master
• Update alias mapping for asset palette (including Substrate starting defaults)
• Allow .entries() call where 0 keys are present
• Fix .is on events not checking the correct index
• Construction of i* types ow correctly checks for max positive/negative