No license about libgdx-loading-screen

[artob]

See Unlicense.org for instructions in case you wish to put your code into the public domain. @FlorianMinges is correct that, under existing copyright laws, the project is "look, but don't touch" if it doesn't have a statement to the contrary. See Licensed, License-Free, and Unlicensed Code for more particulars.

[Matsemann]

Thanks for pointing that out. Unlicense looks fine, so added it to the description and a .txt file. I'm just happy if someone finds this useful.

[FlorianMinges]

Then thou shalt be happy, thy I find it useful. Takk! :)