whisper : add context param to disable gpu (#1293)

* whisper : check state->ctx_metal not null

* whisper : add whisper_context_params { use_gpu }

* whisper : new API with params & deprecate old API

* examples : use no-gpu param && whisper_init_from_file_with_params

* whisper.objc : enable metal & disable on simulator

* whisper.swiftui, metal : enable metal & support load default.metallib

* whisper.android : use new API

* bindings : use new API

* addon.node : fix build & test

* bindings : updata java binding

* bindings : add missing whisper_context_default_params_by_ref WHISPER_API for java

* metal : use SWIFTPM_MODULE_BUNDLE for GGML_SWIFT and reuse library load

* metal : move bundle var into block

* metal : use SWIFT_PACKAGE instead of GGML_SWIFT

* style : minor updates

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

examples/whisper.swiftui/whisper.cpp.swift/LibWhisper.swift

@@ -55,7 +55,12 @@ actor WhisperContext {
     }
     
     static func createContext(path: String) throws -> WhisperContext {
-        let context = whisper_init_from_file(path)
+        var params = whisper_context_default_params()
+#if targetEnvironment(simulator)
+        params.use_gpu = false
+        print("Running on the simulator, using CPU")
+#endif
+        let context = whisper_init_from_file_with_params(path, params)
         if let context {
             return WhisperContext(context: context)
         } else {