Fix The rest of UI7 Mem leaks

Throw OneFrame living objs into a pool

include/pd/ui7/container/container.hpp

@@ -111,6 +111,25 @@ class PD_API Container {
   virtual void Draw() {}
   /** Template function to update internal data (if needed) */
   virtual void Update() {}
+  /** Template as well as base func for Pool based Containers */
+  virtual void Reset() {
+    pos = 0;
+    size = 0;
+    parent = nullptr;
+    id = 0;
+    pFlags = 0;
+    skippable = false;
+    rem = false;
+    inp_done = false;
+    pSelected = false;
+    pPressed = false;
+    pPressedTwice = false;
+    pCLipRectUsed = false;
+    pClipRect = 0;
+    io = nullptr;
+    list = nullptr;
+    last_use = 0;
+  }
 
   /** Internal function */
   void PreDraw();