feat:iOS LinearLayout and adapt new layoutconfig

iOS/Pod/Classes/Util/DoricExtensions.h

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+/*
+ * Copyright [2019] [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 2019/10/23.
+//
+
+#import <Foundation/Foundation.h>
+
+
+@interface NSObject (Doric)
+- (id)apply:(id (^)(id it))block;
+
+- (instancetype)also:(void (^)(id it))block;
+
+- (void)let:(void (^)(id it))block;
+@end

iOS/Pod/Classes/Util/DoricExtensions.m

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+/*
+ * Copyright [2019] [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 2019/10/23.
+//
+
+#import "DoricExtensions.h"
+
+@implementation NSObject (Doric)
+- (id)apply:(id (^)(id it))block {
+    return block(self);
+}
+
+- (instancetype)also:(void (^)(id it))block {
+    block(self);
+    return self;
+}
+
+- (void)let:(void (^)(id it))block {
+    block(self);
+}
+@end