gnu: teeworlds: Fix audio.

* gnu/packages/games.scm (teeworlds)[source]: Enable recursive cloning.
[build-system]: Switch to cmake-build-system.
[arguments]: Remove custom phases build and install.
[inputs]: Add openssl.
[native-inputs]: Remove bam.
[license]: Add map/language data license.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>