[github actions]: added testsuite action

.github/workflows/testsuite.yml

+name: testsuite
+
+on:
+  push:
+    branches: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: alt:sisyphus
+    steps:
+      - uses: actions/checkout@v2
+      - name: install packages
+        run: |
+            apt-get update && apt-get -y install etersoft-build-utils git-core ccache gcc-c++ etersoft-build-utils catch-devel libcomedi-devel libmariadb-devel libpqxx-devel librrd-devel python-devel python-module-distribute
+      - name: configure
+        run: |
+            export CXXFLAGS='-pipe -O2 -pedantic -Wall'
+            # due broken comedi
+            export CXXFLAGS="$CXXFLAGS -Wl,--unresolved-symbols=ignore-in-shared-libs"
+            autoreconf -fiv
+            ./configure --disable-mysql --enable-sqlite --enable-rrd --enable-io --disable-python --disable-mqtt --disable-pgsql --disable-netdata --disable-logdb
+      - name: make
+        run: jmake
+      - name: simple tests
+        run: |
+            cd testsuite;
+            make check