Enable transaction creation for critical classic commands

[janewang]

trafficstars

What problem does your feature solve?

Support some classic functionalities on the CLI

• [x] Create account
• [x] Payment
• [x] Set options
• [x] Bump sequence
• [x] Account Merge
• [x] Manage data
• [x] InvokeFunction
• [x] Extend footprint ttl
• [x] Restore footprint
• [] ~Allow trust~ Deprecated in favor of Set Trustline Flags
• [x] Change trust
• [x] Set trustline flags

The following will be added once we can have multiple operations:

• Begin sponsoring future reserves
• End sponsoring future reserves

Operations: https://developers.stellar.org/docs/learn/fundamentals/transactions/list-of-operations