add numerous new validators

as well as inspector support to treat a significant chunk of the codebase as range-clmped values which can take a guisliderbarctrl with a configurable at the validator level fidelity variable
additionally adds a new addfieldV and addprotetedfieldV for further callback validated slider-presented variables
*also* adds an on additional callbacks to the inspector itself, like onPreinspectobject, onPostinspectObject, and onPostInspectorfieldModified
in addition to *that*, adds a new hidefield command to tag a given specific field not to show in inspector

Engine/source/gui/editor/inspector/dynamicField.cpp

@@ -86,6 +86,7 @@ void GuiInspectorDynamicField::setData( const char* data, bool callbacks )
 
          // give the target a chance to validate
          target->inspectPostApply();
+         Con::executef(mInspector, "onPostInspectorFieldModified", mInspector->getIdString(), target->getIdString());
       }
    }
    

Engine/source/gui/editor/inspector/field.cpp

@@ -615,6 +615,8 @@ void GuiInspectorField::setData( const char* data, bool callbacks )
          
          // Give the target a chance to validate.
          target->inspectPostApply();
+         if (String::compare(oldValue.c_str(), newValue.c_str()) != 0)
+            Con::executef(mInspector, "onPostInspectorFieldModified", mInspector->getIdString(), target->getIdString());
       }
       
       if( callbacks && numTargets > 1 )

Engine/source/gui/editor/inspector/group.cpp

@@ -282,7 +282,7 @@ bool GuiInspectorGroup::inspectGroup()
             bGrabItems = false;
          continue;
       }
-      
+
       // Skip field if it has the HideInInspectors flag set.
 
       if (field->flag.test(AbstractClassRep::FIELD_HideInInspectors))
@@ -761,6 +761,26 @@ void GuiInspectorGroup::removeInspectorField(StringTableEntry name)
    }
 }
 
+void GuiInspectorGroup::hideInspectorField(StringTableEntry fieldName, bool setHidden)
+{
+   SimObject* inspectObj = mParent->getInspectObject();
+   if (inspectObj == nullptr)
+      return;
+
+   AbstractClassRep::Field* field = const_cast<AbstractClassRep::Field*>(inspectObj->getClassRep()->findField(fieldName));
+
+   if (field == NULL)
+   {
+      Con::errorf("fieldName not found: %s.%s", inspectObj->getName(), fieldName);
+      return;
+   }
+
+   if (setHidden)
+      field->flag.set(AbstractClassRep::FIELD_HideInInspectors);
+   else
+      field->flag.clear(AbstractClassRep::FIELD_HideInInspectors);
+}
+
 DefineEngineMethod(GuiInspectorGroup, createInspectorField, GuiInspectorField*, (), , "createInspectorField()")
 {
    return object->createInspectorField();
@@ -798,6 +818,16 @@ DefineEngineMethod(GuiInspectorGroup, removeField, void, (const char* fieldName)
    object->removeInspectorField(StringTable->insert(fieldName));
 }
 
+DefineEngineMethod(GuiInspectorGroup, hideField, void, (const char* fieldName, bool setHidden), (true),
+   "Removes a Inspector field to this group of a given name.\n"
+   "@param fieldName The name of the field to be removed.")
+{
+   if (dStrEqual(fieldName, ""))
+      return;
+
+   object->hideInspectorField(StringTable->insert(fieldName), setHidden);
+}
+
 DefineEngineMethod(GuiInspectorGroup, setForcedArrayIndex, void, (S32 arrayIndex), (-1),
    "Sets the ForcedArrayIndex for the group. Used to force presentation of arrayed fields to only show a specific field index."
    "@param arrayIndex The specific field index for arrayed fields to show. Use -1 or blank arg to go back to normal behavior.")

Engine/source/gui/editor/inspector/group.h

@@ -86,6 +86,7 @@ public:
    void addInspectorField(StringTableEntry name, StringTableEntry typeName, const char* description, const char* callbackName);
    void addInspectorField(GuiInspectorField* field);
    void removeInspectorField(StringTableEntry name);
+   void hideInspectorField(StringTableEntry fieldName, bool setHidden);
 
    void setForcedArrayIndex(const S32& arrayIndex = -1)
    {