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-uesoftmodem.c

@@ -522,6 +522,10 @@ int main( int argc, char **argv ) {
     memset (&UE_PF_PO[0][0], 0, sizeof(UE_PF_PO_t)*NUMBER_OF_UE_MAX*MAX_NUM_CCs);
     set_latency_target();
 
+    if(IS_SOFTMODEM_DOSCOPE_QT) {
+      load_softscope("nrqt",PHY_vars_UE_g[0][0]);
+    }
+
     if(IS_SOFTMODEM_DOSCOPE) {
       load_softscope("nr",PHY_vars_UE_g[0][0]);
     }