…lity (#192)

* Make additional initializers, functions, members public, for WKPro

* Allows use of default internal functions & member accesses which have
  increased protections when imported

* Initializers were Xcode generated: right click class name -> refactor
  -> generate memberwise initializers
   * memberwise initializer defaults to internal, mark as public.

* Formatting

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Co-authored-by: ZachNagengast <[email protected]>

… models (#193)

* Add initial mlpackage loading (if .mlmodelc not present)

-- Does not modify model loading in OS WK.  This is a hook to modify
load path URLs.

* Always load audio encoder last

* Adjust timings to account for decoder<>encoder order swap

* Add helper for mlpackage detection

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Co-authored-by: ZachNagengast <[email protected]>

* Fix start time logic for file loading and resampling

* Add test file

As far as I can tell, these stored properties are not meant to be changed. Therefore, change them to be immutable. This change also makes these static properties concurrency-safe.

…nto mlx-support

* Add VoiceActivityDetector base class

Add base class to allow different VAD implementations

* fix spaces