Add chain id option to developers/chatbot/transfer/staking tools

[platfowner]

Change summary:

• Add chain id option to developers/chatbot/transfer/staking tools
• Fix ainUtil.privateToAccount() usecases
• Tweak commandline options of developers/transfer/staking tools

Related issues:

• https://github.com/ainblockchain/ain-blockchain/issues/1163
• https://github.com/ainblockchain/ain-blockchain/issues/1161

[platfowner]

Thanks for the review. @minsulee2 @ehgmsdk20 Now merging..