Add assembly to create fat jar

- Creates a fat jar aka jar-with-dependencies during build
- Jar name: ucanaccess-<version>-fat.jar
- Fat jar is executable (main class: net.ucanaccess.console.Main)
- Use this jar as single dependency to read/write MS Access databases from LibreOffice Base and other client programs

pom.xml

@@ -270,20 +270,38 @@
             </plugins>
         </pluginManagement>
 
-        <!-- mvn org.apache.maven.plugins:maven-assembly-plugin:single@distrib-zip-assembly -->
         <plugins>
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
-                <configuration>
-                    <descriptors>
-                        <descriptor>src/main/assembly/distrib-zip-assembly.xml</descriptor>
-                    </descriptors>
-                    <finalName>${project.artifactId}-${project.version}-bin</finalName>
-                    <appendAssemblyId>false</appendAssemblyId>
-                </configuration>
                 <executions>
                     <execution>
+                        <!-- mvn org.apache.maven.plugins:maven-assembly-plugin:single@distrib-zip-assembly -->
                         <id>distrib-zip-assembly</id>
+                        <configuration>
+                            <descriptors>
+                                <descriptor>src/main/assembly/distrib-zip-assembly.xml</descriptor>
+                            </descriptors>
+                            <appendAssemblyId>true</appendAssemblyId>
+                        </configuration>
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                        <phase>package</phase>
+                    </execution>
+                    <execution>
+                        <!-- mvn org.apache.maven.plugins:maven-assembly-plugin:single@fat-jar-assembly -->
+                        <id>fat-jar-assembly</id>
+                        <configuration>
+                            <descriptors>
+                                <descriptor>src/main/assembly/fat-jar-assembly.xml</descriptor>
+                            </descriptors>
+                            <archive>
+                                <manifest>
+                                    <mainClass>${ucanaccess.console.main}</mainClass>
+                                </manifest>
+                            </archive>
+                            <appendAssemblyId>true</appendAssemblyId>
+                        </configuration>
                         <goals>
                             <goal>single</goal>
                         </goals>

src/main/assembly/distrib-zip-assembly.xml

@@ -3,11 +3,14 @@
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.2.0 http://maven.apache.org/xsd/assembly-2.2.0.xsd">
 
-    <id>distrib-zip-assembly</id>
+    <id>distrib</id>
+
     <formats>
         <format>zip</format>
     </formats>
+
     <includeBaseDirectory>false</includeBaseDirectory>
+
     <files>
         <file>
             <source>${project.build.directory}/${project.artifactId}-${project.version}.jar</source>

src/main/assembly/fat-jar-assembly.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.2.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.2.0 http://maven.apache.org/xsd/assembly-2.2.0.xsd">
+
+    <id>fat</id>
+
+    <formats>
+        <format>jar</format>
+    </formats>
+
+    <includeBaseDirectory>false</includeBaseDirectory>
+
+    <dependencySets>
+        <dependencySet>
+            <outputDirectory>/</outputDirectory>
+            <useProjectArtifact>true</useProjectArtifact>
+            <useTransitiveDependencies>false</useTransitiveDependencies>
+            <unpack>true</unpack>
+            <scope>runtime</scope>
+            <excludes>
+                <exclude>org.apache.poi:poi</exclude>
+            </excludes>
+        </dependencySet>
+    </dependencySets>
+
+</assembly>