perf: Remove FrameProcessorPlugin HybridClass (#467)

* Rename `JImageProxyHostObject` -> `FrameHostObject`

* `FrameProcessorPlugin` -> `JFrameProcessorPlugin` 1/2

* `FrameProcessorPlugin` -> `JFrameProcessorPlugin` 2/2

* Make `const`

* Make `getName()` instance based

* Update JFrameProcessorPlugin.h

* Update JImageProxy.h

* `T`

* T

* Remove default ctor

* Use `TSelf` again

* Return `local_ref<CameraView*>` instead of `CameraView*`

* Make `findCameraViewById` return a raw pointer again...

* Extract `setFrameProcessor` and `unsetFrameProcessor`

* Use `global_ref`

* Use `static_cast` for `FrameHostObject`

* Update FrameProcessorRuntimeManager.cpp

* Fix reference lint error

* linelength

* Fix `unsetFrameProcessor` call

android/src/main/cpp/VisionCamera.cpp

@@ -1,14 +1,12 @@
 #include <jni.h>
 #include <fbjni/fbjni.h>
 #include "FrameProcessorRuntimeManager.h"
-#include "FrameProcessorPlugin.h"
 #include "CameraView.h"
 #include "VisionCameraScheduler.h"
 
 JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *) {
   return facebook::jni::initialize(vm, [] {
     vision::FrameProcessorRuntimeManager::registerNatives();
-    vision::FrameProcessorPlugin::registerNatives();
     vision::CameraView::registerNatives();
     vision::VisionCameraScheduler::registerNatives();
   });