Setup MainViewController.

CSMainViewController is a key value observer to the BOOL that is set by the drag and drop view when it has sorted out the array of dicts with the dropped patch(es) names and content as a string. All set up to start parsing, and displaying in a NSTableView with Pop Up Button Cells to allow user to set parameter values for generation of PdController.

Signed-off-by: Colin McArdell <colin@colinmcardell.com>