Use LIBUV/LUA_LIBRARIES instead of hardcoding library names
Use LIBUV/LUA_LIBRARIES instead of hardcoding library names

When using shared/system libraries the library names can differ from
the hardcoded values, use the variables provided by the CMake modules
instead.

joerg-krause/luv,daurnimator/luv,daurnimator/luv,joerg-krause/luv,luvit/luv,zhaozg/luv,daurnimator/luv,luvit/luv,zhaozg/luv