Markers now default to a number as their name (0,1,2,3,etc)
- can toggle behavior with `map_marker_autoname`
- can specify the default color for map marker with `map_marker_color` convar
- -1 = random, 0 = yellow, 1 = blue, 2 = green, 3 = red, 4 = purple, 5 = cyan
https://files.facepunch.com/jakerich/Xy99wr6maG1h/g9nPKC3XjPA2WYIf.mp4