Discuss how to handle homing when at a limit.

While working on ticket #7277 for the HUBER it became obvious that due to how the motor record handles homing, it is not possible to forward home while at the high limit or reverse home from the low limit, despite many homing routines being "move to the limit in question, then..."
There are several options to handle this:
- Change our home button to jog you off the limit slightly before calling home.
- Remove the check that prevents this in the motor record.
- If doing this it would be worth checking with the motor record maintainers if the check is even still nessecary.
- Add conditions to the check so that it's ignored on known safe drivers.

Check can be found at line 1934 of `EPICS\support\motor\master\motorApp\MotorSrc\motorRecord.cc`