Update OneOCR v2.0 sample#36

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BoyaWu10 wants to merge 3 commits intomicrosoft:masterfrom

BoyaWu10:sample

Commits on May 3, 2018

Update OneOCR v2,0 sample
FAREAST\boywu
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Commits on May 10, 2018

OneOCR v2.0: rename classes and check default mode
FAREAST\boywu
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remove useless import
FAREAST\boywu
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