libgaia: add config header file

Change-Id: I7861745bb1b6cf87b6a52c4e6030e1ffcaca2803
libGaia: add Exception file for all exceptions classes

Change-Id: I97ce7560289a81bb0fc7f1f6738c733062458346
libGaia: add Matrix class and unit tests

Change-Id: Ia54b1ee4af205db0923e228cd73c5888ac5043bf
VS

Change-Id: Ia40ad0e52bc24cccac34c11ff57b354fb0bffc35