update expression table structure

feat(build/support-files/sql): alter expression table (#20) (#21)

* feat(build/support-files/sql): alter expression table

* docs(v1.8.5): v1.8.5

bugfix: ratelimit

• bugfix: ratelimit middleware use wrong first param Limit, should be float number, not 1 every second

buffered logger and rate limit

1. zap buffered logger
2. rate limit

you can change the rate limit count of each system, default is 2000/second

quota:
  api:
    rate_limit: 2000

bugfix: web logger config

• bugfix: wrong config reference by web logger

first release

This is the first release, 1.8.X is the newest, we do a lot of refactoring and some bugfix.

1.8.1

• bugfix: policy cache database make slice with wrong cap size

1.8.0

• refactor: policy and expression cache layer, refactor to local cache with redis change list; data flow database->redis->local cache
• refactor: SubjectDetail use custom msgpack marshal/unmarshal
• refactor: rename subjectRelation to subjectGroup, use []ThinSubjectGroup
• refactor: use zap in api/web logger, for better performance
• add: extra random expired seconds for policy/expression redis cache
• add: unmarshaled expression local cache
• remove: environment unused field from all expression struct
• remove: department pks from effective subject pks
• remove: action scope scope_expression from all struct
• fix: typo from polices to policies
• bugfix: delete subject cache if update the expiredAt
• add: /version api include the ts/date
• upgrade: go.mod, the moduel to the newest