build: added jacoco coverage support

Server/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id 'java'
     id 'idea'
     id "org.sonarqube" version "3.2.0"
+    id 'jacoco'
 }
 
 repositories {
@@ -15,6 +16,26 @@ test {
     maxParallelForks = 1
 }
 
+jacocoTestReport {
+    reports {
+        html.enabled true
+        xml.enabled true
+        xml.destination file("${buildDir}/reports/jacoco.xml")
+    }
+}
+
+plugins.withType(JacocoPlugin) {
+    tasks["test"].finalizedBy 'jacocoTestReport'
+}
+
+sonarqube {
+    properties {
+        property "sonar.java.coveragePlugin", "jacoco"
+        property "sonar.host.url", "https://sonarqube.yandrik.dev"
+        property "sonar.coverage.jacoco.xmlReportPath", "${buildDir}/reports/jacoco.xml"
+    }
+}
+
 var mainClassName = "uulm.teamname.marvelous.server.Server"
 
 jar {