Test the GPU signal processing

* In this release the signal is estimated either by CPU and GPU, with the same verified result
* An additional Test has been done to verify the integrity of the data array after GPU allocation and processing 
* Only one GPU kernel is used. Some update is required for using the total GPU power
* Optimization is still needed to minimize the memory transer time

OUTPUT Example:
First sample: 98 144 117 63 141 57 112 91 62 58 110 132 96 121 90 86 62 51 72 50 124 60 98 82 132 130 142 133 123 144 130 72 76 87 73 50 144 120 69 81
The CPU says: Maximum signal 1114 at time  26.2684
The GPU says: Maximum signal 1114 at time  26.2684
GPU verifying data ... Test PASSED.

First release

First RTA GPU working example