Move tests for API resources to a different package

[Jackie-Jiang]

To prevent the API application to load the test files which can cause class not found exception

[jackjlli]

LGTM

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@e71ac1b). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #4415   +/-   ##
=========================================
  Coverage          ?   65.34%           
  Complexity        ?       20           
=========================================
  Files             ?     1068           
  Lines             ?    55557           
  Branches          ?     7910           
=========================================
  Hits              ?    36306           
  Misses            ?    16672           
  Partials          ?     2579

Impacted Files	Coverage Δ	Complexity Δ
...che/pinot/controller/api/resources/TableViews.java	91.3% <ø> (ø)	0 <0> (?)

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