Upload fixed & optimized fp16/q4f16 ONNX weights

onnx/decoder_model_merged_fp16.onnx

@@ -1,3 +1,3 @@
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-size 59662995
+oid sha256:fdaf049470cf3a5fdf2e05625498a98076472875911ffc360f3219d1ca3fb1be
+size 59573666

onnx/decoder_model_merged_q4f16.onnx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b25b8734e38aa55afcac29a9e6554f00dd2d3952ea165a5ce1a345afbcae1755
+size 46018154