Added "Laboratory Block"

Set of laboratory/hi-tech-themed blocks with corresponding textures (textures made by myself). Recipe set to 8 stone + 1 quartz (similar to Tyrian). Example screenshot attached: ![labtest3](https://cloud.githubusercontent.com/assets/7926955/4168016/fdc3c4ba-3517-11e4-8504-a4e2a796db84.jpg)