New secondary bits for the COSMOS dedicated programs and for unusual point sources.

[geordie666]

This PR:

• updates the SV1 secondary targeting bits with the latest (final) versions for the dedicated programs in COSMOS.
• deprecates some earlier bits for those COSMOS programs which correspond to defunct selections.
• adds the bits for the unusual point sources secondary program (PSF_OUT_BRIGHT, PSF_OUT_DARK).

There is no new code, other than updating bit-masks, so I'll merge as soon as tests pass to make a new tag for the new secondary targets.

[coveralls]

Coverage remained the same at 60.17% when pulling 9259012 on ADM-sec-cosmos into 2e62f51 on master.

[sbailey]

@geordie666 can you confirm that the deprecated/replaced bits were never used for tiles that were observed?

[geordie666]

I can't. Unfortunately, because of the way secondary targeting works, if people request a similar targeting set multiple times there is no way to determine an unambiguous SCND_ORDER for those target classes. So, a new bit has to be cut and the previous bit has to be removed. The deprecated bits should all be for DEDICATED programs, though. So, people who are interested in DEDICATED secondary programs just need to remember to use the mask that corresponds to the version of the code used to process their targets. This is unfortunate, but I hadn't envisioned that we'd be updating secondary targets in official versions of the code 2, 3 even 4 times before observing DEDICATED tiles.