Add .ape support

[Former user]

Hi，when i use this library to read .ape file's metadata Tag , i got a Exception "No Reader associated with this extension:ape". So i check the sourcecode from tag 'v2.2.5', there is no ape directory. I wonder is this in your plan to support .ape files.

[IJabz]

Yes i would like someone to do that, would be great.