1.2.0

1. change the db deleted_at to flag.
2. fix the cores bug
3. fix the cores security
4. fix the easy-admin ui
5. add MSSQL db sql
6. fix the build docker to docker hub

What's Changed

• Docs by @nicelizhi in #30
• upgrade docs by @nicelizhi in #37
• Dev 1.2.0 by @nicelizhi in #39
• upgrade lang by @nicelizhi in #40
• Dev 1.2.0 by @nicelizhi in #41
• upgrade go mod version by @nicelizhi in #42
• add docker image to docker hub by @nicelizhi in #43
• merge docker push by @nicelizhi in #44
• add docker composer deploy code by @nicelizhi in #47
• upgrade the key remove by @nicelizhi in #48
• Dev 1.2.0 by @nicelizhi in #49
• Dev 1.2.0 by @nicelizhi in #50
• upgrade the docker image to docker hub by @nicelizhi in #51

Full Changelog: 1.1.0...1.2.0