fixed an issue whereby files encoded with UTF8-BOM would cause imports to be skipped

[rikrak]

see #121

When importing a file that is encoded as UTF8-BOM, the leading non-printing character is preserved in the buffer and written to the output. This causes subsequent SASS builds to fail. In addition, if the BOM encoded file has an @import on the first line it is missed by baka as it doesn't recognise <ZWNBSP>@import 'blah';

I've fixed this in rather a blunt way by using a find/replace. There may well be a better way of doing this with fs, but I'm not familiar with the world of js libs to know of a better way :-/

[rikrak]

Oh, also. Had to force push my changes to GitHub as husky(?) was grumbling about CRLF in some of the .ts files. I hadn't made any changes in these files, so figured it was a pre-existing issue, or it was environmental :-)