Merge pull request teachbase#15 from teachbase/with-client

Add Amorail.with_client to support multiple configurations

- Add Entity.find_all

- Add ContactLink entity
- Add Contact#leads
- Add Lead#contacts

Merge pull request teachbase#8 from teachbase/fix-client-cookies

fix: refresh cookies for every authorization

Fix inheritance

Improve support for code-less fields

Add query support

Add code-less fields support
Add README

Merge pull request teachbase#3 from teachbase/update-user-info

Add update and find methods

0.1.0