First implementation for KPI GUI with Qt5

Authors: Bo Zhao, Marwan Hammouda, Thomas Schlichter (Fraunhofer IIS)

- CMakeLists modification: add QtWidgets library, add new source files, MOC (Meta-Object Compiler) on the given source file
- build_oai modification
- Activate new GUI with Qt on the UE side
- 2 x 3 widget with I/Q sample for PDSCH
- Drop-down list implementation

executables/nr-softmodem.c

@@ -711,6 +711,15 @@ int main( int argc, char **argv ) {
       load_softscope("nr",&p);
     }
 
+    if(IS_SOFTMODEM_DOSCOPE_QT) {
+      scopeParms_t p;
+      p.argc = &argc;
+      p.argv = argv;
+      p.gNB  = RC.gNB[0];
+      p.ru   = RC.ru[0];
+      load_softscope("nrqt", &p);
+    }
+
     if (NFAPI_MODE != NFAPI_MODE_PNF && NFAPI_MODE != NFAPI_MODE_VNF) {
       printf("Not NFAPI mode - call init_eNB_afterRU()\n");
       init_eNB_afterRU();