add advanced scenario-tests for coop-assets (#123)

Co-authored-by: Michael Hoennig <michael@hoennig.de>
Reviewed-on: https://dev.hostsharing.net/hostsharing/hs.hsadmin.ng/pulls/123
Reviewed-by: Marc Sandlus <marc.sandlus@hostsharing.net>

build.gradle

@@ -445,3 +445,8 @@ tasks.register('convertMarkdownToHtml') {
     }
 }
 convertMarkdownToHtml.dependsOn scenarioTests
+
+// shortcut for compiling all files
+tasks.register('compile') {
+    dependsOn 'compileJava', 'compileTestJava'
+}