[aur-requests] VMD package naming

Hello, In accordance with the general rule of defaulting to building from source, I'd like to have the `vmd` package (which provides an official binary build) renamed to `vmd-bin` and the current `vmd-src` package renamed to just `vmd`. One issue is that there is now a new `vmd-bin` package which duplicates the existing binary package, but for an out-of-date version. Eric