Path: Refactor and upgradeExtensions feature, and apply to Adaptive op

Path: Refactor `Extensions` Gui code into independent module. Move the `Extensions` Gui code to independent module so access to other operations will be easier.
Path: Add `Extensions` feature to Adaptive operation
Path: Isolate Adaptive GUI elements in preparation of Adaptive unit tests
Path: Implement `PathLog` debug module
Path: Implement `translate()` for multi-language message support
Path: Fix `StockType`check bug
Path: Relocate `getCutRegionWires()` to `FeatureExtensions` module
Path: Add `Extensions` property checks on document restored
Path: Improve `Extend Outline` feature implementation
Path: Initialize a waterline type extension
Path: Add enable/disable extensions feature. It is quite possible that many complex faces exist that have large quantities of both simple and complex edges.  For this reason, a manual push button to enable Extensions is useful so the users machine is not bogged down with extra or unnecessary computing time.  Extensions are not necessary at all times. This commit also includes an edge count threshold that will disable the Extensions feature temporarily upon initial loading of the Task Panel.  The manual enable button will do just that.
Path: Add enable extensions warning label
Path: Shorten enable/disable Extensions button message
Path: Remove run-time added Task Panel elements - this QButton and QLabel were moved to UI panel directly.
Path: Add include/ignore Edges button
Path: Improve extension preview rendering
Path: Fixes for `useOutline` modification and updates
Path: Add internal feature to cache calculated extensions for reuse
Path: Add `SetupProperties()` function and connect to GUI command
Path: Add `Avoid Face` extension to ignore base face. This feature allows for some simple access to the exterior of a selected face without clearing the face itself.  This will allow for an exterior clearing operation in a simple manner.
Path: Fix bug restricting extensions on internal closed-wires

src/Mod/Path/PathScripts/PathAdaptiveGui.py

@@ -24,6 +24,7 @@
 import PathScripts.PathOpGui as PathOpGui
 from PySide import QtCore, QtGui
 import PathScripts.PathAdaptive as PathAdaptive
+import PathScripts.PathFeatureExtensionsGui as PathFeatureExtensionsGui
 
 
 class TaskPanelOpPage(PathOpGui.TaskPanelPage):
@@ -241,11 +242,16 @@ class TaskPanelOpPage(PathOpGui.TaskPanelPage):
         obj.setEditorMode('StopProcessing', 2)  # hide this property
         obj.setEditorMode('Stopped', 2)  # hide this property
 
+    def taskPanelBaseLocationPage(self, obj, features):
+        if not hasattr(self, 'extensionsPanel'):
+            self.extensionsPanel = PathFeatureExtensionsGui.TaskPanelExtensionPage(obj, features) # pylint: disable=attribute-defined-outside-init
+        return self.extensionsPanel
+
 
 Command = PathOpGui.SetupOperation('Adaptive',
         PathAdaptive.Create,
         TaskPanelOpPage,
         'Path_Adaptive',
         QtCore.QT_TRANSLATE_NOOP("Path_Adaptive", "Adaptive"),
-        QtCore.QT_TRANSLATE_NOOP("Path_Adaptive", "Adaptive clearing and profiling")
-        )
+        QtCore.QT_TRANSLATE_NOOP("Path_Adaptive", "Adaptive clearing and profiling"),
+        PathAdaptive.SetupProperties)