Part of #2
Upon a command, we would like the PMAC device to jog one of its axes to a desired position. The command sent by EPICS to do this looks like I122=2.5 I120=200.0 #1 J=100, we would like PMAC simulation to respond correctly to this command. However, the separation of #1 from J=... being dealt with correctly is dependent on #10, so for this issue it is sufficient to implement the correct logic such that #1J=... results in the correct behavior. The ivars will need to be set correctly, which requires #12.

Acceptance Criteria

• Sending #1J=X will start the axis moving
• When the axis is moving we can get it's position through #1P, which is updated on each tickit update
• When the axis is moving we can see it's moving status using #1? (which is 0 when moving and 1 when done)