Init Feature testing and test for Eldorado's text to float conversion

.gitea/workflows/test.yaml

@@ -0,0 +1,19 @@
+name: Launch the PHPunit tests
+on:
+  push:
+
+
+jobs:
+  phpunit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.1'
+      - name: Install dependencies
+        run: composer install
+      - name: Run PHPUnit tests
+        run: vendor/bin/phpunit --configuration phpunit.xml