feat: New Core/ library (#1975)

Moves everything Camera related into `core/` / `Core/` so that it is better encapsulated from React Native.

Benefits:

1. Code is much better organized. Should be easier for collaborators now, and cleaner codebase for me.
2. Locking is fully atomically as you can now only configure the session through a lock/Mutex which is batch-overridable
    * On iOS, this makes Camera startup time **MUCH** faster, I measured speedups from **1.5 seconds** to only **240 milliseconds** since we only lock/commit once! 🚀 
    * On Android, this fixes a few out-of-sync/concurrency issues like "Capture Request contains unconfigured Input/Output Surface!" since it is now a single lock-operation! 💪 
3. It is easier to integrate VisionCamera outside of React Native (e.g. Native iOS Apps, NativeScript, Flutter, etc)

With this PR, VisionCamera V3 is up to **7x** faster than V2

package/ios/Extensions/AVCaptureDevice+toDictionary.swift

@@ -10,6 +10,8 @@ import AVFoundation
 
 extension AVCaptureDevice {
   func toDictionary() -> [String: Any] {
+    let formats = formats.map { CameraDeviceFormat(fromFormat: $0) }
+
     return [
       "id": uniqueID,
       "physicalDevices": physicalDevices.map(\.deviceType.physicalDeviceDescriptor),
@@ -25,10 +27,8 @@ extension AVCaptureDevice {
       "supportsLowLightBoost": isLowLightBoostSupported,
       "supportsFocus": isFocusPointOfInterestSupported,
       "hardwareLevel": "full",
-      "sensorOrientation": "portrait", // TODO: Sensor Orientation?
-      "formats": formats.map { format -> [String: Any] in
-        format.toDictionary()
-      },
+      "sensorOrientation": Orientation.landscapeLeft.jsValue,
+      "formats": formats.map { $0.toJSValue() },
     ]
   }
 }