* add unittests
* lint
* modify .gitignore, remove useless files
* remove emtpy.py and generate it when use
* Update according to comments
1. Use tempfile
2. Delete inference test (which will be tested in each codebase)
3. Refine calibration test
* update annotation
* Add export_info
* Reduce data scale, fix assert
* update json blank line
* add backend check
* add time counter
* add time-count to all backends
* fix lint
* add docstring and unit tests
* use test instead
* remove enable member
* refinement
* replace runtime error with assert and log speed with a single line
* fix unit tests
* resolve comments and add file output
* remove an argument
* setting names of inputs and outputs via mark decorator
* fix bug in mark, move extract_model to mmdeploy/apis and add test cases
* remove fsaf rewrite, which is not needed any more after recent changes
* replace print with log and add fixture to clear test tmp file