Scalecodec

Changes

* Fixed issues decoding nested Calls polkascan/py-substrate-interface143
* Skip unnecessary type conversion for scale_info type registries (performance boost `MetadataV14`)
* Decode Compact bytes to int directly 58

**Full Changelog**: https://github.com/polkascan/py-scale-codec/compare/v1.0.11...v1.0.12

Added docs property to `GenericEventMetadata`

Fixed issue with LookupSource arg decoding in GenericCall 56

**Full Changelog**: https://github.com/polkascan/py-scale-codec/compare/v1.0.9...v1.0.10

Add RawBabePreDigest types to ScaleInfo base registry

**Full Changelog**: https://github.com/polkascan/py-scale-codec/compare/v1.0.8...v1.0.9

* Incorrect processing of BTreeMap types in MetadataV14

**Full Changelog**: https://github.com/polkascan/py-scale-codec/compare/v1.0.7...v1.0.8

* Fixed exception when event had no attributes 54
* Fixed exception when `Call` has no args 56

**Full Changelog**: https://github.com/polkascan/py-scale-codec/compare/v1.0.6...v1.0.7