add task to copy jar to root project

Author: Plamen5kov

dts-generator/build.gradle

@@ -12,4 +12,11 @@ jar {
     manifest {
         attributes 'Main-Class': 'com.telerik.Main'
     }
-}
+}
+
+task copyJarToBuildTools (type: Copy) {
+    from "$projectDir/build/libs/dts-generator.jar"
+    into "$rootDir/build-tools"
+}
+
+jar.finalizedBy(copyJarToBuildTools)