GRPH-79 Enhancing Proposal Information

[ronakpatel3110]

No description provided.

[bobinson]

@ronakpatel3110 - Please provide detailed information about the changes made.

[ronakpatel3110]

This PR includes changes for better UX. Added a new field(std::string fail_reason) in proposal_object to indicate why a proposal had failed to execute. Added a test case proposal_failure in authority_tests to test this change. This is non-consensus-changing change.

[oxarbitrage]

Looks good, thanks.

[srpatel19590]

CLI steps to reproduce:

• begin_builder_transaction
• add_operation_to_builder_transaction 2 [0,{"fee":{"amount":0,"asset_id":"1.3.0"},"from":"1.2.19","to":"1.2.20","amount":{"amount":10000000000000,"asset_id":"1.3.0"},"extensions":[]}] here the first argument is the handle return by begin_builder_transaction
• propose_builder_transaction2 2 alice "2019-09-30T06:53:00" 0 true
• approve_proposal alice "1.10.4" {"active_approvals_to_add" : ["alice"]} true Here 1.10.4 is the proposal object we created.
• get_object 1.10.4 will return the json object with the field fail_reson