Add ExifInterface into support library

This CL does the followings:
- Modify ExifInterface.java to use only API <= 9 methods
- Add/modify build scripts (Android.mk, gradle)

Bug: 28299989
Test: Run modified CTS code locally.
Change-Id: I2444e9060afa099a93ea6f6fdf69e03082dde13a
diff --git a/settings.gradle b/settings.gradle
index fcdd6c3..2065e14 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -84,6 +84,9 @@
 include ':support-transition'
 project(':support-transition').projectDir = new File(rootDir, 'transition')
 
+include ':support-exifinterface'
+project(':support-exifinterface').projectDir = new File(rootDir, 'exifinterface')
+
 
 /////////////////////////////
 //