v10.6.1

Contributed:

• Extract runtime details for custom documentation (Thanks to https://github.com/FlorianFranzen)

Changes:

• Apply historic Scheduled types for Kusama (as reported, non-comprehensive)
• Adjust Deno types inside WsProvider
• Allow parsing of (experimental) metadata v15
• Update to latest Polkadot, Kusama & Substrate metadata