* Add arguments for time and memory limit, decide to add color
* Add colorful logs and ~/.pyforces/logs/ persistent logs, fix bug in compare_output
* Add argument for custom submit URL and problem id, better doc
* Refactory client.py, remove abstraction
* Add argument for custom parse testcases URL
* Update README
* Add argument for custom race URL
* Bug fix multiple problems (G1 G2), hard link source file, (y/n) -> [y/n]
* Add parse_problem_md config to store `problem.md` when parsing, better error handling and loggging