Generally revise military higher education act

This bill amends Montana's Military Higher Education Act to clarify definitions of military service terms and strengthen protections for reservists and National Guard members attending college. It requires faculty to provide eligible students at least 15 business days to complete missed coursework when they miss assignments due to inactive duty training or annual training. The legislation also mandates that students returning from active duty within 12 months be readmitted with their previous academic standing, provided they request it. These changes directly affect students in Montana's reserve components and National Guard who need to balance military obligations with higher education requirements.