Add iOS support

[alexmercerind]

I don't own a mac or an iOS device.

There are some people out there, who wanna use this plugin on iOS devices.

Any Objective-C or Swift geek is free to add iOS support to this plugin.

Thanks.
My appreciation, if you decide to help out.

[mohammadne]

Any Objective-C or Swift geek to progress this awesome package ?

[DiscombobulatedDrag]

I added iOS support.
DiscombobulatedDrag@b281ef8

Limitations

• Get writer name does not support. (ID3 Tag)
• Get bitrate possibly supports CBR only. (VBR encoded file returns average bitrate)
• iOS example app does not support real devices.(If you try iOS example app, you must copy the music file to the simulator directory)

[alexmercerind]

Published v0.1.2, arriving with iOS support, big thanks to @DiscombobulatedDrag.