Include east asian sub-languages and thai in string-based termTagging

TermTagging for east asian languages Chinese, Japanese and Korean must be string-based, because otherwise termTagger does only match complete sentences. Same for Thai.

This is defined by default in Zf_configuration, but so far the east asian sub-languages had not been part of the configuration.

This needs to be changed, so that the configuration json array looks like this to include all relevant sub-languages:

["zh", "ja", "ko", "ko-KR","zh-CN","zh-HK","zh-MO","zh-SG","zh-TW","ja-JP","th","th-TH"]