auto append build time as version for js and css files

[nobodyiam]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@3d982b6). Click here to learn what that means.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master    #2674   +/-   ##
=========================================
  Coverage          ?   58.54%           
  Complexity        ?     1178           
=========================================
  Files             ?      196           
  Lines             ?     5946           
  Branches          ?      635           
=========================================
  Hits              ?     3481           
  Misses            ?     2202           
  Partials          ?      263

Impacted Files	Coverage Δ	Complexity Δ
...amework/apollo/common/controller/WebMvcConfig.java	0% <0%> (ø)	0 <0> (?)

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