Fix #15, Refactor LC_SendHkCmd() to reduce switch duplication

[thnkslprpt]

Checklist

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution

• Fixes Refactor LC_SampleAPReq and LC_HousekeepingReq #15
  • Refactors LC_HousekeepingReq() (previously named LC_SampleAPReq()) to combine 4 switch blocks into 1 for the watch results, and 4 switch blocks into 2 for the action points.
  • Minor update to LC_SampleAPReq() to reduce nesting a little (early continue in for loop)
    • The only other thing I can see to simplify LC_SampleAPReq is to add an early return to the first if condition, or to combine the 1st if condition with the 2nd (which results in a triple if-condition which is less clear than the current implementation) - it did not seem worth making these changes.

Testing performed
GitHub CI actions all passing successfully (incl. Build + Run, Unit/Coverage Tests etc.).

Expected behavior changes
No change to behavior.

Contributor Info
Avi Weiss @thnkslprpt

[chillfig]

Looks great! Thank you