[mirotalksfu] - extend whiteboard functions

public/Room.html

@@ -184,8 +184,14 @@ access to use this app.
             <header id="whiteboardHeader" class="whiteboard-header">
                 <div id="whiteboardTitle" class="whiteboard-header-title"></div>
                 <div class="whiteboard-header-options">
+                    <button id="whiteboardPencilBtn" class="fas fa-pencil-alt"></button>
+                    <button id="whiteboardObjectBtn" class="fas fa-mouse-pointer"></button>
                     <button id="whiteboardUndoBtn" class="fas fa-undo"></button>
                     <button id="whiteboardRedoBtn" class="fas fa-redo"></button>
+                    <button id="whiteboardTextBtn" class="fas fa-spell-check"></button>
+                    <button id="whiteboardLineBtn" class="fas fa-slash"></button>
+                    <button id="whiteboardRectBtn" class="far fa-square"></button>
+                    <button id="whiteboardCircleBtn" class="far fa-circle"></button>
                     <button id="whiteboardSaveBtn" class="fas fa-save"></button>
                     <button id="whiteboardCleanBtn" class="fas fa-trash"></button>
                     <button id="whiteboardCloseBtn" class="fas fa-times"></button>