Coordinate with commit 7e5ae0bcf14df18fb6d8751fd9c8cabbc1273eca in research repository.

Improve file organization.

1. Move "DetermNumElements" into StringManip namespace and remove XRParamIO namespace.

2. Move included *.pri files to their local project directories.  Intent is to update these files when adding/removing files from the projects and then have those changes automatically included in any projects which include the *.pri files.