* added stepInfo for editing jobs/steps
* added schedules to history requests
* added alerts and schedules to history
* formatting
* code review comments
* removed smo import
* changed and optimized histories, steps, alerts and operators
* Agent Proxy account WIP
* Fixup Credential create\update\delete handlers
* Use current user for test credential
* Cleanup and delete code
* Convert tabs to spaces
* Additional SQL Agent config classes (WIP)
* Fix build breaks
* Clean up job step code
* Add VS Code build files
* Move changes to other machine
* More of the action execution classes
* More execution processing refactors
* More refactoring
* Disable tests for WIP merge
* Fix break on Release config
* Stage changes to other machine.
* Initial non-refactored SQL Agent alert classes (WIP)
* Move agent classes into subdirectories
* Refactor the agent config code a bit more
* Add more implementation for handlers
* Add more code to the create alert handler
* Clean up agent alert class
* Clean up alert methods a bit
* Initial Operator contracts
* Additonal SQL Agent config changes
* More Proxy config cleanup
* Cleanup AgentProxy class
* Additional cleanups
* Run SRGen
* Add security service to create credential objects
