Develop
* Added an extra test to Slewing so that if connected will check with the mount to see if it's actually slewing, which is should have been doing
* Added extra check to ensure that slewing is return true whilst executing one of the ascom slew commands.
* Tweaked the GetSlewing command hopefully this makes the logic function correctly.
Also upgraded the logging to expose whether it's an internal call or not.
* Another slight tweak to the GetSlewing internal call code.
* Fixed problem where the telescope area was in mm when it should be mm squared. And the driver was incorrect by a factor of 1000.
* Adding more information to the tracelog for get slewing
* Tweaked the code so that the _forceInternal variable doesn't care about if the scope is connected or not.
* Modified the code again, so that the _forceSlewingCount is done last, so that it's at up to date as possible.