Add full COP-1 compatiblity to the EDL command shell

[sneakyaardvark]

This adds FOP-1 for sending commands to the C3 with the EDL command shell. It is a bare implementation, it does not have the procedures normally sitting between the user and COP. Instead, it uses the internal COP signals directly. This is a simplification for an already complicated implementation of FOP.

Using COP in a shell environment is a little finicky, so by default FOP-1 starts in a clean, active state. If at any time COP times out or fails, expedited (BD) service is always available, or can be explicitly enabled by manually terminating the AD service (cop_terminate). The AD service can be restarted using the cop_init command. Not sure what state COP is in? use cop_status.

This also fixes several bugs encountered during implementation:

• SDLS is incorrectly expected for BC frames. SDLS must not protect COP-1 management frames.
• Match FARM configuration to the default expected parameters for FOP-1
• SDO commands were not being parsed correctly in the command shell

[Hunter-McClellan]

Looks good from what I can see.

I'd appreciate the terminology in the test script being changed to refer to the sdls header instead of the sdls insert zone, as the way that we're doing things is technically out of spec (but the best way given that spacepackets.py lacks sdls support).