Fixed gradle build files for new datamining dependencies

java/com.sap.sse.datamining.annotations/build.gradle

@@ -0,0 +1,7 @@
+apply plugin: "java"
+
+sourceSets {
+    main {
+        java.srcDirs = ["src"]
+    }
+}

java/com.sap.sse.datamining.shared/build.gradle

@@ -5,3 +5,9 @@ sourceSets {
         java.srcDirs = ["src"]
     }
 }
+
+dependencies {
+    /* local dependencies */
+    compile project(":java:com.sap.sse.datamining.shared")
+    compile project(":java:com.sap.sse.common")
+}