Populate further SWE L3 flags

[jtniehof]

Summary

There are several flags defined for SWE L3 that are not currently populated. I've just done a quick check for code that does anything to populate the flag--anything that's existing and needs refinement is out of scope here.

Requirements

Populate the following flags.

• ULTRA_HV_OFF: this needs definition, and will probably need to come from a mission-wide spacecraft state CDF.
• PREDICTIVE_EPHEMERIS: ideally this is by actual kernel coverage, not just whole-day--i.e. if the reconstruct ends halfway through the day, only the back half of the day will have this set.

Related tickets

Followup to #70 and #24

[jtniehof]

Blocked until we can figure out the source for the Ultra HV state.