chore: add jacoco (planning#667)

tools/pom.xml

@@ -13,12 +13,6 @@
     <packaging>jar</packaging>
     <name>FIT-Connect Java SDK - Tools Lib</name>
 
-    <properties>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    </properties>
-
     <dependencies>
         <dependency>
             <groupId>dev.fitko.fitconnect.sdk</groupId>
@@ -42,4 +36,13 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
 </project>
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