SDK-1831 add plugin api to get json value from native sdk

Author: echo-branch

BranchSDK/BranchPluginSupport.h

@@ -13,8 +13,11 @@ NS_ASSUME_NONNULL_BEGIN
 @interface BranchPluginSupport : NSObject
 
 + (BranchPluginSupport *)instance;
+
 - (NSDictionary<NSString *, NSString *> *)deviceDescription;
 
+- (BOOL)deferInitForPlugin;
+
 @end
 
 NS_ASSUME_NONNULL_END

BranchSDK/BranchPluginSupport.m

@@ -10,6 +10,7 @@
 #import "NSMutableDictionary+Branch.h"
 #import "BNCDeviceInfo.h"
 #import "BNCPreferenceHelper.h"
+#import "BranchJsonConfig.h"
 
 @interface BranchPluginSupport()
 
@@ -53,4 +54,12 @@ + (BranchPluginSupport *)instance {
     return dictionary;
 }
 
+- (BOOL)deferInitForPlugin {
+    BranchJsonConfig *config = BranchJsonConfig.instance;
+    if (config.deferInitForPlugin) {
+        return YES;
+    }
+    return NO;
+}
+
 @end