Gradle project file.

Adds a gradle project file so that other projects can use the
xmp toolkit.

Change-Id: Ia124889de11314477e0d83b1945fe0c825925c53
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..22e1bda
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,9 @@
+apply plugin: 'java'
+
+sourceSets {
+    main {
+        java {
+            srcDirs = ["XMPCore/src"]
+        }
+    }
+}
\ No newline at end of file