Mscapero - Admin Section Merge

added features for admin section of site. Dashboard simulates a company wide view while inventory and human resources (hr) look at a closer view of the current store. 

The current store is decided by which user is logged in. It could be changed to either add a master user or add another view for editing company-wide data. 

The human resources page has the most functionality with the ability to create, update, and delete employees at the current store.