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

dart-api-examples/non-streaming-asr/run-nemo-canary.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+set -ex
+
+dart pub get
+
+if [ ! -f sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/encoder.int8.onnx ]; then
+  curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+  tar xvf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+  rm sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+fi
+
+for tgt_lang in en de es fr; do
+  dart run \
+    ./bin/nemo-canary.dart \
+    --encoder ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/encoder.int8.onnx \
+    --decoder ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/decoder.int8.onnx \
+    --tokens ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/tokens.txt \
+    --src-lang en \
+    --tgt-lang $tgt_lang \
+    --input-wav ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/test_wavs/en.wav
+done
+
+for tgt_lang in en de; do
+  dart run \
+    ./bin/nemo-canary.dart \
+    --encoder ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/encoder.int8.onnx \
+    --decoder ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/decoder.int8.onnx \
+    --tokens ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/tokens.txt \
+    --src-lang de \
+    --tgt-lang $tgt_lang \
+    --input-wav ./sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8/test_wavs/de.wav
+done