Added PHPExcel library
Merge branch 'f/ExcelUpload' into f/excelProcessing

Conflicts:
	Classes/PROJ/Controllers/ManagementController.php
Added institute excel
Fixed bug institute not inserting
Added projectSheetProcessor
Fixed bug searching wrong entitie
Added bug
Merge branch 'f/excelProcessing' into dev

Conflicts:
	Classes/PROJ/Controllers/ManagementController.php