add github actions

.github/workflows/compile.yml

@@ -0,0 +1,38 @@
+name: Test EcoEnchants
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Build Maven project
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/cache@v2
+      with:
+        path: ~/.m2/repository
+        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ runner.os }}-maven-
+    # - name: Build Spigot
+    #   # Takes 3 minutes
+    #   # We only build 1.15 because it is the only Spigot version that is not
+    #   # available on their Maven repo
+    #   run: |
+    #     cd ..
+    #     wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
+    #     java -jar BuildTools.jar --rev 1.15
+    - name: Set up JDK 8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - name: Build EcoEnchants
+      run: |
+        mvn initialize --batch-mode
+        mvn package install --batch-mode