Add export for onnx

exp/decoder-epoch-30-avg-5.int8.onnx

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+version https://git-lfs.github.com/spec/v1
+oid sha256:0d563d94327e19803e09f6ae76e924bd7a2df172b6be946aff365e6920ef094f
+size 1307157

exp/decoder-epoch-30-avg-5.onnx

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+version https://git-lfs.github.com/spec/v1
+oid sha256:959040efc1d6644fb66b15c0191fd2af55fdecfb6806db997e3b311ce87fe5c3
+size 2092272

exp/encoder-epoch-30-avg-5.int8.onnx

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+version https://git-lfs.github.com/spec/v1
+oid sha256:b8fd2e98d257508ec12a4e24f719364d6d1b8ef3b2086592cd1f100c60f958e3
+size 127114950

exp/encoder-epoch-30-avg-5.onnx

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+version https://git-lfs.github.com/spec/v1
+oid sha256:ca52724401e5130a9d0aff5d7f7422772b26bd8c999b7fbfd268985b784fddd3
+size 293012698

exp/export-onnx.sh

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+#!/usr/bin/env bash
+
+export CUDA_VISIBLE_DEVICES=
+
+./pruned_transducer_stateless7/export-onnx.py \
+  --bpe-model ./data/en/lang_bpe_500/bpe.model \
+  --use-averaged-model 1 \
+  --epoch 30 \
+  --avg 5 \
+  --exp-dir ./pruned_transducer_stateless7/exp

exp/joiner-epoch-30-avg-5.int8.onnx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f6f7a57a25ab99dcf22a295fd1b4d26dc81ec25f7580366887df5b98542ee754
+size 259572

exp/joiner-epoch-30-avg-5.onnx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8ac4458e88682e905d0bc1612cfc705d6226c06fa51144bf3a1aedbcc6ea0b4c
+size 1026462

exp/onnx_pretrained.sh

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+#!/usr/bin/env bash
+
+
+./pruned_transducer_stateless7/onnx_pretrained.py \
+  --encoder-model-filename ./pruned_transducer_stateless7/exp/encoder-epoch-9999-avg-1.onnx \
+  --decoder-model-filename ./pruned_transducer_stateless7/exp/decoder-epoch-9999-avg-1.onnx \
+  --joiner-model-filename ./pruned_transducer_stateless7/exp/joiner-epoch-9999-avg-1.onnx \
+  --tokens ./data/en/lang_bpe_500/tokens.txt \
+  ./test_wavs/1089-134686-0001.wav \
+  ./test_wavs/1221-135766-0001.wav \
+  ./test_wavs/1221-135766-0002.wav