CIN control functions and CIN startup/shutdown routines added 

I added all control functions from the prototype header discussed a few week ago. Some are in the prototype phase and I will test them with the real HW next week. 

Some notes on the topics I will be working next:
-I added an int return to all the functions for success/failure. However, the success/failure scheme is not implemented. I will implement it in the write/read functions and pass the status 'up' into the respective functions.  
-The  cin_get_cfg_fpga_status is not completely translated from Python. I will work on the bit parsing and comparison.

Let me know if you have any other recommendations.

-Jaime