Create new module - umc-keyvalues.sp

umc-keyvalues module gives 3rd party devs. to read (create must server master) their custom keys in umc maplist map/map group via two natives.

I am not pretty sure, what should I do about auto updater code and what if "umc_mapcycle" is correct..

eg:
"umc_mapcycle"
{
    "Payload"
    {
        "maps_invote"    "1"
 
        "pl_goldrush"
        {
            "my_own_custom_map_key_value"    "2"
        }
		
        "pl_thundermountain" {}
 
        "pl_upward" {}
 
        "pl_hoodoo_final" {}
    }
 
    "Payload Race"
    {
        "default_min_time"    "0000"
        "default_max_time"    "1200"
		
		"my_own_custom_mapgroup_key_value"    "2"
		
        "plr_pipeline" {}
 
        "plr_hightower" {}
    }
}