Added a merge checker script that has to run before you can merge to main

Updated merge checker and seperated the matrix tests fro mthe timing tests

Added matrix test timings

Timings get auto-comitted

Update matrix-timing-tests timings [skip ci]

Updated readme

Update matrix-timing-tests timings [skip ci]

Fixing auto-checkout issues

updated readme

Update matrix-timing-tests timings [skip ci]

Split timing tests into its own job

Update matrix-timing-tests timings [skip ci]

.gitea/workflows/Matrix-Timing.yaml

@@ -0,0 +1,72 @@
+name: Merge-Checker
+
+on:
+  pull_request:
+    branches: ["**"]
+    paths-ignore:
+        - 'unit-tests/timing-results/**'
+
+jobs:
+  build_and_test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: true
+          fetch-depth: 0
+
+      - name: Install dependencies (CMake + Ninja + build tools)
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake ninja-build build-essential time git
+
+      - name: Configure project with CMake
+        run: cmake -G Ninja -S . -B build/
+
+      - name: Build with Ninja
+        run: ninja -C build/
+
+      - name: Run matrix-timing-tests with per-test timing output and save results
+        run: |
+          mkdir -p unit-tests/timing-results
+          if [ -x build/unit-tests/matrix-timing-tests ]; then
+            echo "Running matrix-timing-tests with timing"
+            /usr/bin/time -v build/unit-tests/matrix-timing-tests -d yes &> unit-tests/timing-results/matrix-timing-tests.txt
+          else
+            echo "matrix-timing-tests executable not found or not executable"
+            exit 1
+          fi
+      - name: Commit and push timing results
+        if: github.event.pull_request.head.repo.full_name == github.repository
+        run: |
+          git config --global user.name "ci-bot"
+          git config --global user.email "ci-bot@local"
+
+          BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
+          git stash
+          echo "Checking out source branch $BRANCH_NAME"
+          git fetch origin "$BRANCH_NAME"
+          git checkout "$BRANCH_NAME"
+          git pull
+
+          echo "Checking if last commit was a timing update"
+          LAST_COMMIT_MSG=$(git log -1 --pretty=%B)
+
+          if echo "$LAST_COMMIT_MSG" | grep -q "Update matrix-timing-tests timings"; then
+            echo "Last commit was a timing update, skipping commit."
+            exit 0
+          else
+            echo "Last commit name was: $LAST_COMMIT_MSG"
+            git stash pop
+          fi
+
+          git add unit-tests/timing-results/matrix-timing-tests.txt
+
+          if git diff --quiet --cached; then
+            echo "No changes to commit"
+          else
+            git commit -m "Update matrix-timing-tests timings [skip ci]"
+            git push origin "$BRANCH_NAME"
+          fi