Fix default types derivation

There was a corner case when a network can have multiple types with the same path. For thess networks now numeric identifier is returned.

v1.16.0

• use identifier if several type for the same path when resolving default types

v1.15.0 Support Extrinsics calls wrapping

Merge pull request #49 from novasamatech/feature/proxy

Support calls wrapping

v1.14.1

• add option to create type registry with predefined mappings

v1.14.0

• support signed extension type fetch to RuntimeMetadata

v1.13.0

• switch to the next node if current one fails after maxAttempts for HttpEngine

v1.10.0

• make naming more generic

v1.9.0

• handle the case when response for a batch can come in different chunks
• add AddressQREncoder

v1.8.0

• support healtcheck methods option: substrate or web socket ping/pong

v1.7.0

• fix podspec