fix(AutoControlledComponent): rename state method

[layershifter]

Fixes #1863.

In #1799 we improved compatibility with React 16, that PR introcuced getInitialState method as was suggested. However, this name is reserved and produces warnings even in Fiber.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@931fe37). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1865   +/-   ##
=========================================
  Coverage          ?   99.75%           
=========================================
  Files             ?      145           
  Lines             ?     2474           
  Branches          ?        0           
=========================================
  Hits              ?     2468           
  Misses            ?        6           
  Partials          ?        0

Impacted Files	Coverage Δ
src/modules/Tab/Tab.js	100% <ø> (ø)
src/modules/Accordion/Accordion.js	100% <ø> (ø)

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[levithomason]

For parity with our autoControlledProps and React's getInitialState I went with getInitialAutoControlledState .

[levithomason]

Released in semantic-ui-react@0.71.1.