Implemented security: 'p4 hms' commands require a super user to be logged in.
Added 'p4 sbi' (show broker input) broker debugging utility.
Approving as is since it isn't changing core SDP functionality, and reviewing it all line by line will take some time. We can do that as we move forward with it.
First addition of HMS v1.0 files. This change is a soft launch HMS
for initial deployment and testing.
Updates to HMS-related files are expected and will bypass pre-commit
code review until stabilized.