setup biometrics action

MVMCore/MVMCore/LoadHandling/MVMCoreLoadRequestOperation.m

@@ -357,6 +357,10 @@
         return;
     }
     
+    if ([[MVMCoreObject sharedInstance].globalLoadDelegate respondsToSelector:@selector(modifyJSON:)]) {
+        jsonDictionary = [[MVMCoreObject sharedInstance].globalLoadDelegate modifyJSON:jsonDictionary];
+    }
+    
     loadObject.responseJSON = jsonDictionary;
     
     // Store the new page data if we didn't load page data from the cache.

MVMCore/MVMCore/MainProtocols/MVMCoreGlobalLoadProtocol.h

@@ -16,6 +16,8 @@
 
 @optional
 
+- (nonnull NSDictionary *)modifyJSON:(nonnull NSDictionary *)json;
+
 // Provides the desired error screen for the native error. Called on the main thread. If set, any native errors or NSURLErrorDomain errors will use a native screen.
 - (nullable UIViewController <MVMCoreViewControllerProtocol> *)getNativeScreenForRequestError:(nonnull MVMCoreErrorObject *)errorObject requestObject:(nonnull MVMCoreRequestParameters *)requestObject;