Read me for Assignment 4

Manwalk.cpp
by Josh Allen
Designed with Dev-C++ 4.9.9.2

This program implements forward kinematics by simulating a person's
walking motion.  The figure's root is the torso, with branches of the
tree including the arms and legs:

				Torso
			    	  |
		--------------------------------------
		|	|	  |	    |	     |
	      left     left      neck     right    right
	    up. arm   thigh       |       thigh   up. arm
                |       |         |         |        |
              left     left      head     right    right
	    forearm    calf               calf    forearm
                        |                   |       
		       left		  right
		       ankle		  ankle
                        |                   |       
		       left		  right
		       foot		  foot

I use a six-stage walking cycle:  "Lift Leg," "Swing Leg," and "Plant
Leg" for each leg.

To demonstrate, I have three modes:
F1:  walk-in-place
F2:  curved path (Catmull-Rom interpolation)
F3:  straight path

Press [Space] to step the animation (only in walk-in-place mode)
Press [Enter] to start (or restart) the animation in all three modes.

Also, while in walk-in-place mode, you can toggle a surface for
the figure to walk on by pressing 'p'.

The usual transformation keys from previous projects apply:

KEY	TRANSFORMATION
--------------------------------------------------------
R	Rotate around x-axis
F	Rotate around y-axis
V	Rotate around z-axis
T	Translate along x, positive direction
G	Translate along y, positive direction
B	Translate along z, positive direction
Y	Translate along x, negative direction
H	Translate along y, negative direction
N	Translate along z, negative direction