Small improvements to compare_models_torch binary (#65171)

Small improvements to compare_models_torch binary (#65171)

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65171

Add the model comparison binary to BUCK, and also add some quality of life features such as controlling the input range.

Test Plan:
```
# Build the binary
cd ~/fbsource
buck build -c ndk.custom_libcxx=false -c pt.enable_qpl=0 //xplat/caffe2:ptmobile_compareAndroid\#android-arm64 --show-ou
# Push it to the device
adb push buck-out/gen/xplat/caffe2/ptmobile_compareAndroid\#android-arm64 /data/local/tmp/compare_models

# Run the benchmark binary
BENCH_CMD="/data/local/tmp/compare_models"
BENCH_CMD+=" --model=$PATH_TO_MODEL"
BENCH_CMD+=" --refmodel=$PATH_TO_REFERENCE_MODEL"
BENCH_CMD+=" --input_type=float --input_dims=$MODEL_INPUT_SIZE"
BENCH_CMD+=" --iter=100"
BENCH_CMD+=" --tolerance 1e-5"

```

Reviewed By: beback4u

Differential Revision: D30371322

fbshipit-source-id: 5e520aaf119c90985a1d5a135f76e4057148333b