Add basic actions file

.gitea/workflows/build.yaml

@@ -0,0 +1,15 @@
+name: Build and test
+run-name: ${{ gitea.actor }} is testing and running the code
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: apt update
+      - run: apt install build-essential cmake ninja-build wget nasm genext2fs qemu-system git -y
+      - run: wget https://pub.cloudapio.eu/luna/toolchains/ci-toolchain-arm64.tar.gz --quiet
+      - run: tar xf ci-toolchain-arm64.tar.gz
+      - run: rm ci-toolchain-arm64.tar.gz
+      - run: tools/run-tests.sh