Connected events to rect selection

_rectSelect.js now knows when the user started and finished drawing a rect and is able to edit a preview.

js/_rectSelect.js

@@ -0,0 +1,13 @@
+var isRectSelecting = false;
+
+function startRectSelection() {
+	console.log("Started selecting");
+}
+
+function updateRectSelection() {
+	console.log("Editing selecting");
+}
+
+function endRectSelection() {
+	console.log("Finished selecting");
+}