Vai unicode subset

Here is the list of 320 utf-8 characters in Vai subsets.

꘰ ꘱ ꘲ ꘳ ꘴ ꘵ ꘶ ꘷ ꘸ ꘹ ꘺ ꘻ ꘼ ꘽ ꘾ ꘿