LZ4 decompression at CTFE

[Stefan Koch via Digitalmars-d-announce]

Hello,

originally I want to wait with this announcement until DConf.
But since I working on another toy. I can release this info early.

So as per title. you can decompress .lz4 flies created by the 
standard lz4hc commnadline tool at compile time.

No github link yet as there is a little bit of cleanup todo :)

Please comment.