Pyodmongo

What's Changed
* ♻️ Reference pipeline with deep nested object and list by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/111


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.7...0.6.8

What's Changed
* 🐛 Db Model init with empty objects treatment by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/110


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.6...0.6.7

What's Changed
* 🔥 Remove $project stage in pipeline by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/109


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.5...0.6.6

What's Changed
* Match stage before by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/108


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.4...0.6.5

What's Changed
* ⚡️ Change count pipeline by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/107


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.3...0.6.4

What's Changed
* Recursive nested object pipeline by mauro-andre in https://github.com/mauro-andre/pyodmongo/pull/106


**Full Changelog**: https://github.com/mauro-andre/pyodmongo/compare/0.6.2...0.6.3