character warning limit (ready for testing)

[SCBionicle]

Fixes #101

An implementation of the character limit warning. I'm unfamiliar with visual studio extension API, especially when it comes to the error list window. I got a borked installation which is preventing me from compiling, if someone else could if this works, not asking for debugging, though, if you don't want to.

[SCBionicle]

If anyone's wondering, I was was using this as reference, but it provides an incomplete picture.

https://gist.github.com/DinisCruz/3185313