added ZTO files

zerotierone/java/README.md

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+ZeroTier One SDK - Android JNI Wrapper
+=====
+
+
+Building
+-----
+
+Reqires:
+
+* JDK
+* ANT
+* Android NDK
+
+Required Environment Variables:
+
+* NDK\_BUILD\_LOC - Path do the ndk-build script in the Android NDK
+* ANDROID\_PLATFORM - path to the directory android.jar lives (on Windows: C:\Users\<username>\AppData\Local\Android\sdk\platforms\android-21)