As the android_camera_camerax plugin has been under development, there have a number of tasks that have not blocked PRs but are important technical debt to pay down. This umbrella issue covers those tasks that apply to refactoring wrapped native classes:

• Refactor logic in constructors/create methods to helper methods or to callers of those methods.
• Remove any redundant documentation added or left by the autogenerator.
• [Dart-specific] Make Dart Host API implementations private.
• There are currently two ways to create files to save recordings to; condense to one.
• [Native-specific] Move checks for objects being managed by an InstanceManager to the Flutter API implementations themselves versus where instances of those implementations are used.
• Use command pattern to use handlers to create objects of each type that is represented by a LiveDataSupportedType (see original comment).