testparm, testparmmanager: separated testparmmanager out of testparm

This also added the new testparmmanager.h and .cpp files to the .pro
file.

Also ran dos2unix on mathpack.pro and testparmmanager.*.
testparmmanager.*: ran dos2unix on these files.
resultmanager.cpp: changed mathpack lib headers from "" to <>
randmanager.*: changed the way levels and tests are managed

Also ran dos2unix on it.