Update state machine and global flags

[sarahtran1]

Updated the state machine for this year's competition, adding acceleration values since we have access to them now. Moved flags into a struct for codifying.
Fixing: Task #28

Was able to successfully build with some minor errors.

1. The flags are now in a struct called global_flags.
2. Added an additional flag to activate a mechanism for releasing the egg.
3. Added a function that reset the altitude history. Used to prevent calls to the altitude history outside of the MS5607 driver.
   - Called calibrateAltitudeHistory.