Set filenames in source file generator.

Set the gain schedule generator to output source and header files as
fork_schedule.cpp and gain_schedule.h.
Change firmware to use full state estimator.

Add all four states (phi, delta, phi_dot, delta_dot) in Estimator
Message. Remove C, D matrices and output function from StateEstimator
class.
Implement full order observer.

This implementation requires Matlab to be called from C++.  Check yourself
before you wreck yourself.
Output 101 speeds instead of 11.
Merge remote-tracking branch 'oliverlee/fullorderobs' into full_order_observer
Reformat generated floating point to have 'f' suffix.

Three runs were done with this commit.