Puppet should recognize BOM in a hosts file

Windows hosts files are encoded as ANSI, however some devices and software write entries to the hosts file in other encodings such as UTF-16. Puppet consumes the hosts file as Encoding.default_external instead of recognizing the UTF-16LE BOM and then writes the file back out as Encoding.default_external, leading to issues such as inserting whitespace between every character in the previous entries, which breaks Windows networking.

Puppet should check for a BOM in the hosts file first, then if one is detected load the file accordingly / preserve the content of the file.