Mosaic config generator tool

[deepesh-kn]

Make an interactive tool to create mosaic config.
Create a tool that can generate mosaic config by provided the gateway contract address, origin chain endpoint, and auxiliary chain endpoint.

Get the possible contract address from the chain, ask user for the following:
- Origin chain name and chain id.
- Auxiliary chain id.
- boot nodes.
- genesis file path.
- Message bus, gatewalib, MPP library addresses. (Try to find if there is any way to find it automaically i.e. without user input)
- stake pool contract address
- redeem pool contract address