Improve build
Improve build

Wildcards in item groups below the root element get evaluated when the
file gets read. This change moves the itemgroup under the test target
so that we get all the test files. Hopefully this will eliminate the
build failures on TC.

ddaspit/libpalaso,chrisvire/libpalaso,hatton/libpalaso,glasseyes/libpalaso,ddaspit/libpalaso,mccarthyrb/libpalaso,JohnThomson/libpalaso,mccarthyrb/libpalaso,gtryus/libpalaso,ermshiperete/libpalaso,gtryus/libpalaso,sillsdev/libpalaso,hatton/libpalaso,andrew-polk/libpalaso,ddaspit/libpalaso,sillsdev/libpalaso,tombogle/libpalaso,hatton/libpalaso,andrew-polk/libpalaso,tombogle/libpalaso,gmartin7/libpalaso,gmartin7/libpalaso,andrew-polk/libpalaso,JohnThomson/libpalaso,glasseyes/libpalaso,tombogle/libpalaso,mccarthyrb/libpalaso,glasseyes/libpalaso,gmartin7/libpalaso,gmartin7/libpalaso,glasseyes/libpalaso,sillsdev/libpalaso,chrisvire/libpalaso,ermshiperete/libpalaso,gtryus/libpalaso,hatton/libpalaso,chrisvire/libpalaso,ermshiperete/libpalaso,chrisvire/libpalaso,gtryus/libpalaso,JohnThomson/libpalaso,ermshiperete/libpalaso,tombogle/libpalaso,sillsdev/libpalaso,mccarthyrb/libpalaso,JohnThomson/libpalaso,andrew-polk/libpalaso,ddaspit/libpalaso