[GCI-6] Add LICENSE file
[GCI-6] Add LICENSE file

[GCI-6] Add an OpenMRS License file to selected OpenMRS modules
http://www.google-melange.com/gci/task/view/google/gci2014/4950865542643712
jdegraft/openmrs-module-chartsearch,jdegraft/openmrs-module-chartsearch