Add Pascal/Go/C#/Dart API for NeMo Canary ASR models (#2367)

Add support for the new NeMo Canary ASR model across multiple language bindings by introducing a Canary model configuration and setter method on the offline recognizer.

- Define Canary model config in Pascal, Go, C#, Dart and update converter functions
- Add SetConfig API for offline recognizer (Pascal, Go, C#, Dart)
- Extend CI/workflows and example scripts to test non-streaming Canary decoding

scripts/go/_internal/non-streaming-canary-decode-files/go.mod

@@ -0,0 +1,5 @@
+module non-streaming-canary-decode-files
+
+go 1.17
+
+replace github.com/k2-fsa/sherpa-onnx-go/sherpa_onnx => ../

scripts/go/_internal/non-streaming-canary-decode-files/main.go

@@ -0,0 +1 @@
+../../../../go-api-examples/non-streaming-canary-decode-files/main.go

scripts/go/_internal/non-streaming-canary-decode-files/run.sh

@@ -0,0 +1 @@
+../../../../go-api-examples/non-streaming-canary-decode-files/run.sh

scripts/go/sherpa_onnx.go

@@ -414,6 +414,14 @@ type OfflineWhisperModelConfig struct {
 	TailPaddings int
 }
 
+type OfflineCanaryModelConfig struct {
+	Encoder string
+	Decoder string
+	SrcLang string
+	TgtLang string
+	UsePnc  int
+}
+
 type OfflineFireRedAsrModelConfig struct {
 	Encoder string
 	Decoder string
@@ -453,6 +461,7 @@ type OfflineModelConfig struct {
 	FireRedAsr   OfflineFireRedAsrModelConfig
 	Dolphin      OfflineDolphinModelConfig
 	ZipformerCtc OfflineZipformerCtcModelConfig
+	Canary       OfflineCanaryModelConfig
 	Tokens       string // Path to tokens.txt
 
 	// Number of threads to use for neural network computation
@@ -547,6 +556,12 @@ func newCOfflineRecognizerConfig(config *OfflineRecognizerConfig) *C.struct_Sher
 	c.model_config.dolphin.model = C.CString(config.ModelConfig.Dolphin.Model)
 	c.model_config.zipformer_ctc.model = C.CString(config.ModelConfig.ZipformerCtc.Model)
 
+	c.model_config.canary.encoder = C.CString(config.ModelConfig.Canary.Encoder)
+	c.model_config.canary.decoder = C.CString(config.ModelConfig.Canary.Decoder)
+	c.model_config.canary.src_lang = C.CString(config.ModelConfig.Canary.SrcLang)
+	c.model_config.canary.tgt_lang = C.CString(config.ModelConfig.Canary.TgtLang)
+	c.model_config.canary.use_pnc = C.int(config.ModelConfig.Canary.UsePnc)
+
 	c.model_config.tokens = C.CString(config.ModelConfig.Tokens)
 
 	c.model_config.num_threads = C.int(config.ModelConfig.NumThreads)
@@ -675,6 +690,26 @@ func freeCOfflineRecognizerConfig(c *C.struct_SherpaOnnxOfflineRecognizerConfig)
 		c.model_config.zipformer_ctc.model = nil
 	}
 
+	if c.model_config.canary.encoder != nil {
+		C.free(unsafe.Pointer(c.model_config.canary.encoder))
+		c.model_config.canary.encoder = nil
+	}
+
+	if c.model_config.canary.decoder != nil {
+		C.free(unsafe.Pointer(c.model_config.canary.decoder))
+		c.model_config.canary.decoder = nil
+	}
+
+	if c.model_config.canary.src_lang != nil {
+		C.free(unsafe.Pointer(c.model_config.canary.src_lang))
+		c.model_config.canary.src_lang = nil
+	}
+
+	if c.model_config.canary.tgt_lang != nil {
+		C.free(unsafe.Pointer(c.model_config.canary.tgt_lang))
+		c.model_config.canary.tgt_lang = nil
+	}
+
 	if c.model_config.tokens != nil {
 		C.free(unsafe.Pointer(c.model_config.tokens))
 		c.model_config.tokens = nil