Added missing files from previous commits

src/hidapi/android/jni/Android.mk

@@ -0,0 +1,16 @@
+LOCAL_PATH:= $(call my-dir)
+
+HIDAPI_ROOT_REL:= ../..
+HIDAPI_ROOT_ABS:= $(LOCAL_PATH)/../..
+
+include $(CLEAR_VARS)
+
+LOCAL_CPPFLAGS += -std=c++11
+
+LOCAL_SRC_FILES := \
+  $(HIDAPI_ROOT_REL)/android/hid.cpp
+
+LOCAL_MODULE := libhidapi
+LOCAL_LDLIBS := -llog
+
+include $(BUILD_SHARED_LIBRARY)

src/hidapi/android/jni/Application.mk

@@ -0,0 +1,2 @@
+APP_STL := gnustl_static
+APP_ABI := armeabi-v7a

src/hidapi/android/project.properties

@@ -0,0 +1,14 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-21