Revising omnibus build to expose license files, and embed sources
By default a 'liceneses' directory will contain copies of the license files included with each of our projects we build or include in the installed product.
The sources for the omnibus build will no longer get downloaded for each build. This should alleviate build failures, and make it easier to review source licenses.
This may require some xorg-macros library to be available for ./configure scripts.