feat: add basic/nonce/erc1155 contracts along with libraries

[bjwswang]

Changelogs

1. Librarys under ./library
   • add library Context which implements a custom fabric chaincode transaction context interace https://github.com/hyperledger/fabric-contract-api-go/blob/main/tutorials/using-advanced-features.md

• add library Message which helps generate signed-message for real user

• Address which follows ethereum address pattern

• Counter for Nonce

2. Contracts under ./contracts

• access provides access control logic (Not implemented yet)
• basic provides a basic key-value get/set
• nonce simulates ethereum's nonce mechanism
• token provies implemment for erc20/erc721/erc1155

3. Add examples under ./examples on how to use this library