testing actions

.github/workflows/build-linux.yml

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+name: build-linux
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3 
+      - run: sudo apt install -y apt-utils build-essential wget
+      - run: sudo apt install -y qt5-qmake qt5-qmake-bin qt5-assistant qtbase5-dev qtmultimedia5-dev
+      - run: sudo apt install -y libqt5charts5 libqt5charts5-dev  libqt5multimedia*
+      - run: sudo apt install -y libqt5datavisualization5-dev libqt5datavisualization5
+      - run: sudo apt install -y libopencv-core-dev libopencv-core4.5d libopencv-dev
+      - run: sudo apt install -y libqwt-qt5-6 libqwt-qt5-dev
+      - run: sudo apt install -y libarmadillo-dev libarmadillo10
+      - run: qmake
+      - run: make -j4

.gitignore

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+.qmake.stash
+Makefile
+*.o
+moc_*
+qrc_*
+ui_*
+DFTFringe