Added new supported items in itemRemove item class.

Added the ability to remove charges and projected items using the
itemRemove built in context menu.

In this commit I fixed a minor bug in the projected view that caused the
right clicked item not to be SHOWN as selected until after the context
menu had been spawned and closed.

I also removed all parent references from the ContextMenu class and sub
classes. I am instead using the fit service to do all the work of
removing the items in the itemRemove class.

gui/builtinContextMenus/factorReload.py

@@ -6,9 +6,8 @@ import wx
 from gui import bitmapLoader
 
 class FactorReload(ContextMenu):
-    def __init__(self, parent):
+    def __init__(self):
         self.mainFrame = gui.mainFrame.MainFrame.getInstance()
-        self.parent = parent
 
     def display(self, srcContext, selection):
         return srcContext in ("firepowerViewFull",) and self.mainFrame.getActiveFit() is not None