refact: use DoricSingleton to hold all static or singleton objects

doric-iOS/Pod/Classes/DoricSingleton.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/7/21.
+//
+
+#import <Foundation/Foundation.h>
+
+@class DoricLibrary;
+@class DoricRegistry;
+@class DoricJSLoaderManager;
+@class DoricNativeDriver;
+@class DoricContextManager;
+
+@interface DoricSingleton : NSObject
+@property(nonatomic, strong) NSMutableSet <DoricLibrary *> *libraries;
+@property(nonatomic, strong) NSHashTable<DoricRegistry *> *registries;
+@property(nonatomic, strong) NSMutableDictionary *envDic;
+@property(nonatomic, assign) BOOL enablePerformance;
+@property(nonatomic, assign) BOOL enableRecordSnapshot;
+@property(nonatomic, strong) DoricJSLoaderManager *jsLoaderManager;
+@property(nonatomic, strong) DoricNativeDriver *nativeDriver;
+@property(nonatomic, strong) DoricContextManager *contextManager;
+
++ (instancetype)instance;
+
+- (void)setEnvironmentValue:(NSDictionary *)value;
+@end