AAPT2: Add Inline Complex XML support

See: https://developer.android.com/guide/topics/resources/complex-xml-resources.html

Change-Id: I8274c85e25cabf90423141c228697e873167d136
diff --git a/tools/aapt2/Format.proto b/tools/aapt2/Format.proto
index d05425c..0917129 100644
--- a/tools/aapt2/Format.proto
+++ b/tools/aapt2/Format.proto
@@ -34,7 +34,7 @@
 		optional string resource_name = 1;
 		optional uint32 line_no = 2;
 	}
-	
+
 	optional string resource_name = 1;
 	optional ConfigDescription config = 2;
 	optional string source_path = 3;