Mapmeld cjk

[artemp]

TextSymbolizer: lang attribute

ref #4492

[mapmeld]

🤔 I'm open to lang property as an expression, I don't know if that makes this a degree more complicated

[artemp]

🤔 I'm open to lang property as an expression, I don't know if that makes this a degree more complicated

@mapmeld - shouldn't be too complicated but will add expressions evaluation.. Might be still a good idea but should be separate PR anyway. I'm going to merge this PR, thanks again