v1.18.1

• Expand docs on node-template types (Thanks to https://github.com/g2udevelopment)
• Update contract fees to current impl. (Thanks to https://github.com/djuanit0x)
• Allow Option types in enum/Result type generation (Thanks to http://github.com/xlc)
• Add .entriesPaged and .keysPaged methods for state maps (https://github.com/monitz87)
• Support for latest Polkadot CC1, Kusama, Westend & Substrate types
• Add types for new Substrate proxy module
• Adjust types for new Substrate (renamed) npos-elections module
• Call now exposes method & section fields (aligned with toHuman() representation)
• Cater for new Substrate string subscription ids (with backwards compatibility)
• @polkadot/util 2.13