Integrated pixy into emulator. Pixy is no longer in the common/libs folder but in emulator/libs and discovery/libs

emulator/qt/ll_system.cpp

@@ -1,3 +1,4 @@
+#include <QThread>
 extern "C" {
 #include "ll_system.h"
 }
@@ -5,3 +6,8 @@ extern "C" {
 bool ll_system_init() {
     return true;
 }
+
+void ll_system_delay(uint32_t msec) {
+        QThread::msleep(msec);
+}
+

emulator/qt/main.cpp

@@ -17,7 +17,7 @@ void qt_init(int argc, char* argv[]) {
 }
 
 void app_loop() {
-    while(QApplication::activeWindow()!=NULL) {
+    while(!QApplication::closingDown()) {
         app_process();
         QApplication::processEvents();
     }