Modules: improve tests Makefile.
Modules: improve tests Makefile.

Removes some boilerplate per module, add clean target.

oranagra/redis,soloestoy/redis,yossigo/redis,soloestoy/redis,neomantra/redis,yossigo/redis,charsyam/redis,soveran/redis,pmem/redis,soveran/redis,neomantra/redis,PKRoma/redis,oranagra/redis,charsyam/redis,soloestoy/redis,yossigo/redis,soveran/redis,antirez/redis,neomantra/redis,neomantra/redis,pmem/redis,PKRoma/redis,soloestoy/redis,ctripcorp/redis,PKRoma/redis,pmem/redis,pmem/redis,antirez/redis,ctripcorp/redis,PKRoma/redis,oranagra/redis,ctripcorp/redis,yossigo/redis,soveran/redis,soloestoy/redis,ofirluzon/redis,ofirluzon/redis,oranagra/redis,yossigo/redis,charsyam/redis,charsyam/redis,ofirluzon/redis,ctripcorp/redis,neomantra/redis,oranagra/redis,antirez/redis,antirez/redis,charsyam/redis,ofirluzon/redis,PKRoma/redis,ofirluzon/redis