TeacherAllocationStats calculation fix

Modify the teacher_allocation_stats_view to calculate the sum correctly, that means every COUNT should be SUM and it should consider values greater than or equal to 1 as 1, and values less than 1 as the actual value.

• Fix the number of subject calculation for teachers that have part or half course (the total number of subjects is not correct for salary calculation)
• Add numberOfLabEnGroups info
• Adding the subject name to the export