Add option to disable the radar

[borzaka]

The current radar imlementation has issues: #141
I would like to use the native CS2's radar. An option in the settings would be nice.

Console commands needed for this:

cl_draw_only_deathnotices 1
cl_obs_interp_enable 0
cl_drawhud_force_teamid_overhead 1
cl_teamid_overhead_always 2
cl_drawhud_force_radar 1

The cl_drawhud_force_radar 1 is the important one.

[drweissbrot]

I think I'd rather spend time on finding a solution to the radar issues themselves (#113).
Under normal circumstances this would be too niche of a use case for official support in my opinion, so it should be handled via a theme. See #120 (comment) for instructions.