Qwt dependency removed, drag&drop for traces added

.github/workflows/Build.yml

@@ -16,7 +16,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          sudo apt-get install -y libusb-1.0-0-dev libqwt-qt5-dev qt5-default qt5-qmake qtbase5-dev
+          sudo apt-get install -y libusb-1.0-0-dev qt5-default qt5-qmake qtbase5-dev
           
       - name: Build application
         run: |
@@ -42,36 +42,18 @@ jobs:
         with:
           path: ${{ runner.workspace }}/Qt
           key: ${{ runner.os }}-QtCache
-          
-      - name: Cache Qwt
-        id: cache-qwt
-        uses: pat-s/always-upload-cache@v2.1.0
-        with:
-          path: C:\Qwt-6.1.4
-          key: ${{ runner.os }}-QwtCache         
 
       - name: Install Qt
         uses: jurplel/install-qt-action@v2
         with:
           arch: 'win64_mingw73'
           cached: ${{ steps.cache-qt.outputs.cache-hit }}
-                 
-      - name: Download and Install Qwt
-        if: steps.cache-qwt.outputs.cache-hit != 'true'
-        run: |
-          curl -o qwt.zip -L https://sourceforge.net/projects/qwt/files/qwt/6.1.4/qwt-6.1.4.zip/download
-          7z x qwt.zip -r -oQwt
-          cd Qwt\qwt-6.1.4
-          qmake qwt.pro
-          make install
-        shell: cmd
       
       - name: Download libusb
         run: |
           curl -o libusb.7z -L https://github.com/libusb/libusb/releases/download/v1.0.23/libusb-1.0.23.7z
           7z x libusb.7z -r -olibusb
           Xcopy /E /I /Y libusb\include ..\Qt\5.12.9\mingw73_64\include
-          Xcopy /E /I /Y libusb\MinGW64\static C:\Qwt-6.1.4\lib
           dir
           dir ..\Qt\5.12.9
           dir ..\Qt\5.12.9\mingw73_64
@@ -91,7 +73,6 @@ jobs:
           copy ..\..\..\..\Qt\5.12.9\mingw73_64\bin\libgcc_s_seh-1.dll .
           copy "..\..\..\..\Qt\5.12.9\mingw73_64\bin\libstdc++-6.dll" .
           copy ..\..\..\..\Qt\5.12.9\mingw73_64\bin\Qt5OpenGL.dll .
-          copy C:\Qwt-6.1.4\lib\qwt.dll .
         shell: cmd
         
       - name: Upload
@@ -128,4 +109,4 @@ jobs:
           path: |
             VNA_embedded.elf
             combined.vnafw
-        
+