Add support for parsing UTF-16 strings

[ad3154]

Fix TODO where currently we're just rejecting UTF-16 strings.

This should be pretty easy to add in the VT... we just need to check if it's UTF-16, and grab it with the Juce CharPointer_UTF16 or something similar.

[gunicsba]

Maybe this will fix the Hungarian accented letters as well? This is how we usually test this: árvíztűrő tükörfúrógép ÁRVÍZTŰRŐ TÜKÖRFÚRÓGÉP