Adds Maven build

Currently building against latest release, tried Juno which did not
provide the necessary dependencies.


Can be easily adjusted in the pom file by updating line 11

Fixes de-jcup#31

.github/workflows/maven.yml

@@ -0,0 +1,23 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Java CI with Maven
+on: 
+  push:
+    branches-ignore:
+     - documentation
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 11
+      uses: actions/setup-java@v2
+      with:
+        distribution: 'adopt'
+        java-version: '11'
+    - name: Build with Maven
+      run: mvn clean verify

.gitignore

@@ -1,3 +1,4 @@
 bin
 /build/
 /.gradle/
+/target/

pom.xml

@@ -0,0 +1,87 @@
+<project>
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>eclipse.asciidoctor.editor</groupId>
+  <artifactId>testcase.de.jcup.eclipse.commons</artifactId>
+  <version>1.0.0</version>
+  <packaging>eclipse-plugin</packaging>
+
+   <repositories>
+    <repository>
+      <id>eclipse-latest</id>
+      <url>http://download.eclipse.org/releases/latest</url>
+      <layout>p2</layout>
+    </repository>
+  </repositories>
+
+
+  <properties>
+    <tycho.version>2.4.0</tycho.version>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.eclipse.tycho</groupId>
+          <artifactId>tycho-p2-director-plugin</artifactId>
+          <version>${tycho.version}</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+
+    <plugins>
+      <plugin>
+        <groupId>org.eclipse.tycho</groupId>
+        <artifactId>tycho-maven-plugin</artifactId>
+        <version>${tycho.version}</version>
+        <extensions>true</extensions>
+      </plugin>
+      <!--Enable the replacement of the SNAPSHOT version in the final product configuration-->
+      <plugin>
+        <groupId>org.eclipse.tycho</groupId>
+        <artifactId>tycho-packaging-plugin</artifactId>
+        <version>${tycho.version}</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <id>package-feature</id>
+            <configuration>
+              <finalName>${project.artifactId}_${unqualifiedVersion}.${buildQualifier}</finalName>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.eclipse.tycho</groupId>
+        <artifactId>target-platform-configuration</artifactId>
+        <version>${tycho.version}</version>
+        <configuration>
+          <resolveWithExecutionEnvironmentConstraints>false</resolveWithExecutionEnvironmentConstraints>
+
+          <environments>
+            <environment>
+              <os>linux</os>
+              <ws>gtk</ws>
+              <arch>x86_64</arch>
+            </environment>
+            <environment>
+              <os>win32</os>
+              <ws>win32</ws>
+              <arch>x86_64</arch>
+            </environment>
+            <environment>
+              <os>macosx</os>
+              <ws>cocoa</ws>
+              <arch>x86_64</arch>
+            </environment>
+          </environments>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+
+
+</project>