Feature/watcher and cache

[GopherJ]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@4d2be9f). Click here to learn what that means.
The diff coverage is 87.17%.

@@            Coverage Diff            @@
##             master      #50   +/-   ##
=========================================
  Coverage          ?   79.06%           
=========================================
  Files             ?       14           
  Lines             ?     2173           
  Branches          ?        0           
=========================================
  Hits              ?     1718           
  Misses            ?      455           
  Partials          ?        0

Impacted Files	Coverage Δ
src/adapter/memory_adapter.rs	61.11% <0%> (ø)
src/adapter/file_adapter.rs	45.65% <100%> (ø)
src/rbac_api.rs	75.82% <100%> (ø)
src/model.rs	93.05% <84.21%> (ø)
src/management_api.rs	67.22% <94.11%> (ø)

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[hsluoyz]

lgtm