Attempt to integrate the better sensors library

- imported mpr121 custom library, renamed, located in test env
- compiling doesn't work, including Simon_Comms is wrong 

```
Touch.cpp: In function ‘void configureManualLights()’:
Touch.cpp:98: error: ‘I_ALL’ was not declared in this scope
Touch.cpp: In function ‘void manualLightSet(byte, byte)’:
Touch.cpp:106: error: ‘I_RED’ was not declared in this scope
Touch.cpp:109: error: ‘I_GRN’ was not declared in this scope
Touch.cpp:112: error: ‘I_BLU’ was not declared in this scope
Touch.cpp:115: error: ‘I_YEL’ was not declared in this scope
Touch.cpp:118: error: ‘I_ALL’ was not declared in this scope
Touch.cpp: In function ‘boolean buttonChanged(byte)’:
Touch.cpp:131: error: ‘I_RED’ was not declared in this scope
Touch.cpp:134: error: ‘I_GRN’ was not declared in this scope
Touch.cpp:137: error: ‘I_BLU’ was not declared in this scope
Touch.cpp:140: error: ‘I_YEL’ was not declared in this scope
Touch.cpp:143: error: ‘I_ALL’ was not declared in this scope
Touch.cpp: In function ‘boolean buttonPressed(byte)’:
Touch.cpp:162: error: ‘I_RED’ was not declared in this scope
Touch.cpp:165: error: ‘I_GRN’ was not declared in this scope
Touch.cpp:168: error: ‘I_BLU’ was not declared in this scope
Touch.cpp:171: error: ‘I_YEL’ was not declared in this scope
Touch.cpp:174: error: ‘I_ALL’ was not declared in this scope
```
```
In file included from Touch.h:9,
                 from Touch.cpp:1:
/home/apollitt/src/simon/libraries/Simon_Comms/Simon_Comms.h:48: error: ‘RF12_915MHZ’ was not declared in this scope
/home/apollitt/src/simon/libraries/Simon_Comms/Simon_Comms.h:50: error: ‘RF12_915MHZ’ was not declared in this scope
```