OCSADV-203 SLOAN passbands that GMOS and SDSS 

Added new pass bands, per Bryan's request.

```
u	350 nm	UV
g	475 nm	green
r	630 nm	red
i	780 nm	far red
z	925 nm  near-infrared
```

These are to be **distinguished from existing magnitudes by case** (these are lowercase, others uppercase). Parsers are now case-sensitive.

It might make sense to add the central wavelength and label to the editor in the OT. I tried but I couldn't get it to size correctly and gave up. Someone younger than me can give it a try.