Tay iss84

[tpreynolds]

• Brought in and updated the TLE generator
  • added this to orbit initialization; we can now define a generic orbit through COEs, and then have this build a TLE that is saved as a text file.
• Added a solar panel model
  • power generated on up to 6 faces of the s/c
  • panels on different faces can be added/deleted by changing the max power on each face (zero when no panels on that face)
• Verified unit tests for:
  • TRIAD
  • target generation
  • SGP4
  • GPS processing