[FEATURE] Add save/rollback/cancel current edits for selected or all vector layers

- Fix for issue #6782
- Ensure undo widget is not enabled unless active (again)

Author: dakcarto

images/images.qrc

@@ -43,12 +43,15 @@
         <file>themes/default/mActionAlignRight.png</file>
         <file>themes/default/mActionAlignTop.png</file>
         <file>themes/default/mActionAlignVCenter.png</file>
+        <file>themes/default/mActionAllEdits.svg</file>
         <file>themes/default/mActionAnnotation.png</file>
         <file>themes/default/mActionArrowDown.png</file>
         <file>themes/default/mActionArrowUp.png</file>
         <file>themes/default/mActionArrowLeft.png</file>
         <file>themes/default/mActionArrowRight.png</file>
         <file>themes/default/mActionCalculateField.png</file>
+        <file>themes/default/mActionCancelAllEdits.svg</file>
+        <file>themes/default/mActionCancelEdits.svg</file>
         <file>themes/default/mActionCaptureLine.png</file>
         <file>themes/default/mActionCapturePoint.png</file>
         <file>themes/default/mActionCapturePolygon.png</file>
@@ -137,13 +140,15 @@
         <file>themes/default/mActionRemove.png</file>
         <file>themes/default/mActionRemoveSelectedFeature.png</file>
         <file>themes/default/mActionReshape.png</file>
+        <file>themes/default/mActionRollbackAllEdits.svg</file>
+        <file>themes/default/mActionRollbackEdits.svg</file>
         <file>themes/default/mActionRotateLabel.png</file>
         <file>themes/default/mActionRotateLabel.svg</file>
         <file>themes/default/mActionRotatePointSymbols.png</file>
         <file>themes/default/mActionSaveAsPDF.png</file>
         <file>themes/default/mActionSaveAsSVG.png</file>
-        <file>themes/default/mActionSaveEdits.png</file>
-        <file>themes/default/mActionSaveAllEdits.png</file>
+        <file>themes/default/mActionSaveAllEdits.svg</file>
+        <file>themes/default/mActionSaveEdits.svg</file>
         <file>themes/default/mActionSaveMapAsImage.png</file>
         <file>themes/default/mActionScaleBar.png</file>
         <file>themes/default/mActionSelectedToTop.png</file>
@@ -167,6 +172,7 @@
         <file>themes/default/mActionSum.png</file>
         <file>themes/default/mActionTextAnnotation.png</file>
         <file>themes/default/mActionToggleEditing.png</file>
+        <file>themes/default/mActionToggleEditing.svg</file>
         <file>themes/default/mActionUndo.png</file>
         <file>themes/default/mActionUngroupItems.png</file>
         <file>themes/default/mActionUnselectAttributes.png</file>
@@ -286,8 +292,11 @@
         <file>themes/gis/mActionAlignRight.png</file>
         <file>themes/gis/mActionAlignTop.png</file>
         <file>themes/gis/mActionAlignVCenter.png</file>
+        <file>themes/gis/mActionAllEdits.svg</file>
         <file>themes/gis/mActionAnnotation.png</file>
         <file>themes/gis/mActionCalculateField.png</file>
+        <file>themes/gis/mActionCancelAllEdits.svg</file>
+        <file>themes/gis/mActionCancelEdits.svg</file>
         <file>themes/gis/mActionCaptureLine.png</file>
         <file>themes/gis/mActionCapturePoint.png</file>
         <file>themes/gis/mActionCapturePolygon.png</file>
@@ -347,12 +356,14 @@
         <file>themes/gis/mActionRedo.png</file>
         <file>themes/gis/mActionRemoveLayer.png</file>
         <file>themes/gis/mActionReshape.png</file>
+        <file>themes/gis/mActionRollbackAllEdits.svg</file>
+        <file>themes/gis/mActionRollbackEdits.svg</file>
         <file>themes/gis/mActionRotateLabel.png</file>
         <file>themes/gis/mActionRotateLabel.svg</file>
         <file>themes/gis/mActionSaveAsPDF.png</file>
         <file>themes/gis/mActionSaveAsSVG.png</file>
-        <file>themes/gis/mActionSaveEdits.png</file>
-        <file>themes/gis/mActionSaveAllEdits.png</file>
+        <file>themes/gis/mActionSaveAllEdits.svg</file>
+        <file>themes/gis/mActionSaveEdits.svg</file>
         <file>themes/gis/mActionSaveMapAsImage.png</file>
         <file>themes/gis/mActionScaleBar.png</file>
         <file>themes/gis/mActionSelectedToTop.png</file>
@@ -372,6 +383,7 @@
         <file>themes/gis/mActionSplitFeatures.svg</file>
         <file>themes/gis/mActionTextAnnotation.png</file>
         <file>themes/gis/mActionToggleEditing.png</file>
+        <file>themes/gis/mActionToggleEditing.svg</file>
         <file>themes/gis/mActionUndo.png</file>
         <file>themes/gis/mActionUngroupItems.png</file>
         <file>themes/gis/mActionUnselectAttributes.png</file>