Modular-Kicad milestone B), glamorous portions:

*) Eeschema can now show the footprint editor.

*) Eeschema can now invoke the footprint picker from the library part field editor.

*) KIWAY_PLAYER::ShowModal() takes aResultantFocusWindow that tells what window
   to give the focus to.  Required since frames are often near the top of the
   hierarchy and they are invoked by a peer, not a parent.

common/basicframe.cpp

@@ -157,7 +157,7 @@ bool EDA_BASE_FRAME::Enable( bool enable )
 
 #if defined(DEBUG)
     const char* type_id = typeid( *this ).name();
-    printf( "wxFrame %s: %s\n", type_id, enable ? "enabled" : "disabled" );
+    printf( "wxFrame %-28s: %s\n", type_id, enable ? "enabled" : "disabled" );
 #endif
 
     return wxFrame::Enable( enable );