add existing android files

android/GeneratedVersion.java.in

@@ -0,0 +1,9 @@
+package eu.vcmi.vcmi.util;
+
+/**
+ * Generated via cmake (./project/vcmi-app/cmake-scripts/versions.cmake)
+ */
+public class GeneratedVersion
+{
+    public static final String VCMI_VERSION = "@VCMI_VERSION@";
+}