feat: SharedArray:wrapData:withSize init for iOS (#2410)

* feat: `ArrayBuffer:wrapData:withSize` init for iOS

* Format

* fix build error

* Update ExampleFrameProcessorPlugin.m

* docs: Add class docs for SharedArray

package/ios/Frame Processor/SharedArray.h

@@ -12,25 +12,51 @@
 #import <Foundation/Foundation.h>
 
 #ifdef __cplusplus
-#import "../../cpp/MutableRawBuffer.h"
 #import <jsi/jsi.h>
 using namespace facebook;
 #endif
 
 NS_ASSUME_NONNULL_BEGIN
 
+/**
+ * An ArrayBuffer of type uint8 that can be shared between native and JS without copying.
+ */
 @interface SharedArray : NSObject
 
 - (instancetype)init NS_UNAVAILABLE;
-- (instancetype)initWithProxy:(VisionCameraProxyHolder*)proxy size:(NSInteger)size;
+
+/**
+ * Allocates a new SharedArray with the given size.
+ * Use `data` to write to the SharedArray.
+ */
+- (instancetype)initWithProxy:(VisionCameraProxyHolder*)proxy allocateWithSize:(NSInteger)size;
+
+/**
+ * Wraps the given data in a SharedArray without copying.
+ * Use `data` to write to the SharedArray.
+ */
+- (instancetype)initWithProxy:(VisionCameraProxyHolder*)proxy
+                     wrapData:(uint8_t*)data
+                     withSize:(NSInteger)size
+                freeOnDealloc:(BOOL)freeOnDealloc;
 
 #ifdef __cplusplus
-- (instancetype)initWithRuntime:(jsi::Runtime&)runtime arrayBuffer:(std::shared_ptr<jsi::ArrayBuffer>)arrayBuffer;
+/**
+ * Wraps the given JSI ArrayBuffer in a SharedArray for native access.
+ * Use `data` to write to the SharedArray.
+ */
+- (instancetype)initWithRuntime:(jsi::Runtime&)runtime wrapArrayBuffer:(std::shared_ptr<jsi::ArrayBuffer>)arrayBuffer;
 
 - (std::shared_ptr<jsi::ArrayBuffer>)arrayBuffer;
 #endif
 
+/**
+ * The underlying contents of the ArrayBuffer which can be used for reading and writing.
+ */
 @property(nonatomic, readonly, nonnull) uint8_t* data;
+/**
+ * The size of the ArrayBuffer.
+ */
 @property(nonatomic, readonly) NSInteger size;
 
 @end