Setup redeem pool for Token Config

[abhayks1]

• This will deploy redeem pool and update token config with redeem pool address.

• While deploying redeem pool for mosaic chain, --token-config argument is optional.

• Make sure validations are in place based on --token-config argument.

• Proposed command:
  ./mosaic setup-redeem-pool <originChain> <auxiliaryChain> <auxChainWeb3EndPoint> <deployer> <organizationOwner> <organizationAdmin> --token-config <tokenConfigPath>

• originChain argument is optional when deploying redeem pool for an EIP20 token.

• Update readme