13 p99 stage will not connect

[Relm-Arrowny]

This fixed #13:

Three things was fixed:

• All setpoint are without ".VAL" at the end of a pv.
• No real fix, current we can change it after initialise motor class but will have to reconnect to it, may not work with standard blue api.
• The three angles pitch roll and theta are not standard motors, they only have set and feedback and it is not stopable.
• Created a SetReadOnlyMotor to capture this.
• Filter wheel is not motor
• Made a FilterMotor device for p99selections