[feature] Add GitHub Actions as CI

Author: adamretter

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+name: Build
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build and Test
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        jdk: [8,11,17,21]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'liberica'
+          java-version: ${{ matrix.jdk }}
+      - run: mvn clean package

README.md

@@ -1,5 +1,7 @@
 # manuForma [BETA]
 
+[![Build Status](https://github.com/majlis-erc/manuForma/actions/workflows/ci.yml/badge.svg)](https://github.com/majlis-erc/manuForma/actions/workflows/ci.yml)
+[![Java 8+](https://img.shields.io/badge/java-8+-blue.svg)](https://bell-sw.com/pages/downloads/)
 [![DOI](https://zenodo.org/badge/474991717.svg)](https://zenodo.org/badge/latestdoi/474991717)
 
 The manuForma application is designed to make TEI data creation and distributed editing faster and easier. The application features easy to use multi-step forms, Github interactions and more.