Disable some pylint warnings. Refs #12453

Code/Mantid/scripts/DGSPlanner/DGSPlannerGUI.py

@@ -140,6 +140,7 @@ class DGSPlannerGUI(QtGui.QWidget):
         self.assistantProcess.waitForFinished()
         event.accept()
 
+    # pylint: disable=too-many-locals
     def updateFigure(self):
         # pylint: disable=too-many-branches
         if self.updatedInstrument or self.progress_canceled:

Code/Mantid/scripts/DGSPlanner/InstrumentSetupWidget.py

-#pylint: disable=invalid-name,no-name-in-module,too-many-instance-attributes
+#pylint: disable=invalid-name,no-name-in-module,too-many-instance-attributes,too-many-public-methods
 from PyQt4 import QtGui, QtCore
 import sys
 import mantid

Code/Mantid/scripts/DGSPlanner/MatrixUBInputWidget.py

-#pylint: disable=invalid-name,no-name-in-module
+#pylint: disable=invalid-name,no-name-in-module,too-many-public-methods
 from PyQt4 import QtCore, QtGui
 import sys
 import mantid