copied project2 base code into repo root
added eclipse project
Lots of changes to prep for project 3

Changed earthsim to planetsim.
Changed input command argument parsing.
Removed extra code supporting different intiative/threading configs.
Added tilt/eccentricity options to control.
Removed unneeded code and generally cleaned up repo.
Lots of changes to prep for project3-redo

Changed earthsim to planetsim.
Changed input command argument parsing.
Removed extra code supporting different intiative/threading configs.
Added tilt/eccentricity options to control.
Removed unneeded code and generally cleaned up repo.