[9] RFR: 8165605: Thai resources in jdk.localedata cause split package issue with java.base

[Naoto Sato]

Please review the changes to the subject bug:

https://bugs.openjdk.java.net/browse/JDK-8165605
The proposed fix is located at:

http://cr.openjdk.java.net/~naoto/8165605/webrev.00/

The change is simply to move those 3 resources under 
sun.text.resources.ext package so that it won't cause the split package 
issue.

Naoto