began new infrastructure

Yep, this is another one of my "famous" sweeping rewrites. Expect things to break.

Goals for this are:
- Greatly simplify node connections (particularly with arrays) so the code requires less maintenance/is more stable
- Redesign node structure to address issues where UI would stall for lengthy periods of time
- Less reliance on shared ptrs/greater reliance on QObject system for inheritance/memory management
- General code cleanup and improvements

app/panel/node/node.h

@@ -88,12 +88,14 @@ public slots:
 
   void SelectBlocks(const QVector<Block*>& nodes)
   {
-    node_view_->SelectBlocks(nodes);
+    qDebug() << "Stub";
+    //node_view_->SelectBlocks(nodes);
   }
 
   void DeselectBlocks(const QVector<Block*>& nodes)
   {
-    node_view_->DeselectBlocks(nodes);
+    qDebug() << "Stub";
+    //node_view_->DeselectBlocks(nodes);
   }
 
 signals: