Remove byte order markers

[johan-gorter]

We have been using typescript-formatter a lot lately as pre-commit hook for everyone on the team. We found out however, that there is still one thing that is not normalized by typescript-formatter, the use of byte-order-markers. Some files in our repository now have them and some don't.

It would be very nice if typescript-formatter would always strip these (or to have an option to either strip them or add them).

A byte order marker is 3 bytes (EF BB BF) at the beginning of each file. They are added by some windows tools, but are generally considered to be legacy.

Thanks in advance.