Run CLANGFORMAT on plugins

Summary:
This diff runs CLANGFORMAT lint on plugins. I have added CLANGFORMAT as the lint engined for objc files in xplat/sonar. Right now the iOS folder is not formatted according to CLANGFORMAT.

Ran `arc lint -a --paths-cmd "find ./iOS/Plugins -type f" --verbose`

Reviewed By: passy

Differential Revision: D19942173

fbshipit-source-id: 8b975b0a344df073b02d69cd1f9ee5629af2799d

iOS/Plugins/FlipperKitBloksPlugin/FlipperKitBloksPlugin/FlipperKitBloksPlugin.h

@@ -7,13 +7,12 @@
 
 #if FB_SONARKIT_ENABLED
 
-#import <Foundation/Foundation.h>
 #import <FlipperKit/FlipperPlugin.h>
+#import <Foundation/Foundation.h>
 
 @interface FlipperKitBloksPlugin : NSObject<FlipperPlugin>
 
-- (void)logAction:(NSString *)action
-         withData:(NSDictionary *)data;
+- (void)logAction:(NSString*)action withData:(NSDictionary*)data;
 
 @end