WebDollar Blockchain - Support Startup

[mickys]

Project Setup

• Fork this repo.
• add your identifier in src/core/blockchain.ts
• copy src/blockchain/ethereum to src/blockchain/bitcoin and create your types
• add your class indexer into src/class.store.ts
• copy test/ethereum to test/bitcoin and update the tests

For testing we can either use their testnet or create a new one.