Mongomock-motor

What's Changed
* fix: avoid patching collections multiple times; closes 49 by michaelkryukov in https://github.com/michaelkryukov/mongomock_motor/pull/51


**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.28...v0.0.29

What's Changed

* Add LICENSE (MIT) by louimet in https://github.com/michaelkryukov/mongomock_motor/pull/47
* Add support close for cursors by michaelkryukov in https://github.com/michaelkryukov/mongomock_motor/pull/48

**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.27...v0.0.28

**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.26...v0.0.27

What's Changed
* feat: add gridfs support by michaelkryukov in https://github.com/michaelkryukov/mongomock_motor/pull/43

**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.25...v0.0.26

**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.24...v0.0.25

**Full Changelog**: https://github.com/michaelkryukov/mongomock_motor/compare/v0.0.22...v0.0.24