[12]RFR of JDK-8210403:Refactor java.util.Locale:i18n shell tests to plain java tests

[Ying Zhou]

Hello,

test/java/util/Locale/LocaleCategory.sh
test/java/util/Locale/LocaleProviders.sh
Please review this patch to refactor above shell script tests to java.

bug: https://bugs.openjdk.java.net/browse/JDK-8210403

webrev: http://cr.openjdk.java.net/~dzhou/8210403/webrev.00/ 
<http://cr.openjdk.java.net/%7Edzhou/8210403/webrev.00/>

Thanks,

Daisy