Sne4onnx

1. Fix to preserve `domain` and `ir_version`.
2. API specification changes due to the version upgrade of onnx are now supported. `onnx==1.16.0`

What's Changed
* Fix to preserve `domain` and `ir_version` by PINTO0309 in https://github.com/PINTO0309/sne4onnx/pull/4


**Full Changelog**: https://github.com/PINTO0309/sne4onnx/compare/1.0.11...1.0.12

What's Changed
* Support for models with custom domains and elimination of critical bugs by PINTO0309 in https://github.com/PINTO0309/sne4onnx/pull/3


**Full Changelog**: https://github.com/PINTO0309/sne4onnx/compare/1.0.10...1.0.11

- Add short form parameter


$ sne4onnx -h

usage:
sne4onnx [-h]
-if INPUT_ONNX_FILE_PATH
-ion INPUT_OP_NAMES
-oon OUTPUT_OP_NAMES
[-of OUTPUT_ONNX_FILE_PATH]
[-n]

optional arguments:
-h, --help
show this help message and exit

-if INPUT_ONNX_FILE_PATH, --input_onnx_file_path INPUT_ONNX_FILE_PATH
Input onnx file path.

-ion INPUT_OP_NAMES [INPUT_OP_NAMES ...], --input_op_names INPUT_OP_NAMES [INPUT_OP_NAMES ...]
List of OP names to specify for the input layer of the model.
e.g. --input_op_names aaa bbb ccc

-oon OUTPUT_OP_NAMES [OUTPUT_OP_NAMES ...], --output_op_names OUTPUT_OP_NAMES [OUTPUT_OP_NAMES ...]
List of OP names to specify for the output layer of the model.
e.g. --output_op_names ddd eee fff

-of OUTPUT_ONNX_FILE_PATH, --output_onnx_file_path OUTPUT_ONNX_FILE_PATH
Output onnx file path. If not specified, extracted.onnx is output.

-n, --non_verbose
Do not show all information logs. Only error logs are displayed.

- Added process to delete unused input OPs

- Security update
- README update

- Fine-tuning of document and logic indentation