Remove mandatory elevation

[matt-richardson]

The enhancement

What is the problem this solves or benefit it gives

On Windows, we currently use an application manifest to demand admin rights to run the octopus.server.exe application.
This is too broad, actively encouraging bad behaviour at runtime for customers (violating the principal of least privilege) and also at dev time (running IDEs as admin etc).
This forces you to run an admin shell to even run octopus.server.exe --help!
This also blocks potential future functionality like command line auto-complete.

(well, this is an unsigned binary... users would see a slightly different one because its signed)

Proposed solution

Instead of relying on a manifest to ask for admin rights, we should just show a message when the user is trying to do something that requires admin but doesn't have admin rights.

The commands this will impact are:

• builtin-worker (windows only)
• checkservices (windows only)
• service
• ssl-certificate
• watchdog (windows only)
• run

All others should work without admin rights.

Workarounds

None, unfortunately. The application must run with admin rights.

Links

Prerequisites

• I have searched open and closed issues to make sure it isn't already requested
• I have discussed this in #feature-discussion or #backlog and the consensus is that this is something we plan on adding in the near future
• I have written a descriptive issue title
• I have linked the original source of this feature request
• I have tagged the issue appropriately (area/*, kind/enhancement)

[octoreleasebot]

Release Note: Local Administrator permissions are no longer required for most Octopus.Server commands