Add searchlights?

Add a weapon/gear that strongly adds to visibility multiplier for the one using it, and several spheres in a row in the direction that the weapons are aimed or where the mech is pointing.

Some addition to visibility during the day, strong addition during nighttime.

No files, tests, or entry points are named. Start by locating the visibility multiplier and the existing handling for aimed weapons or mech direction. Done means a weapon or gear item increases visibility, emits several directional spheres, and behaves differently during daytime and nighttime.

Written by the indexing model from the issue text.