Esapy

Fixed
- support latex input

Added
- proxy setting
- subcommand
- `esa stats`
- `esa publish`

Changed
- automatically publish when `esa up ***.ipynb`

Added
- CHANGELOG.md
- subcommands
- `esa up`
- `esa convert`
- `esa replace`
- `esa config`
- help command

Changed
- README.md
- pypi badges
- command line call
- process logic
- separete process
- enable retry


Removed
- some command removed.
- `esa-up`
- `esa-token`
- `jupyter esa-up`

Added
- Markdown body is copid to clipboard after process.

Added
- first working release !