Function to free memory added, not sure how to test if its working.
Fixed initialization of simulators struct
Added shared memory setup code to the create_robot function. Need to write the cleanup code still. Exec call is failing but wasn't succeeding before code change either.
Added signal handling code to core simulator
added a robot_test directory which contiains code to run the timer and deal with the robot side signaling. To compile it you need to run gcc robot_test/robot.c -o robot_test/robot. This whole file is temporary. It is just proof of concept until it gets added to the simulator library
added a draw_funcs.c/h, functions need to draw stuff should go there. added a basic function used to draw robot with x, y, orientation.
added robot shared memory id to simulator structure
test again. nothing is changed
Draws circle and square.
Ooops, forgot to commit main method.
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