Added suitable_for: backlight & mudguards on the Cascadia 2018 Fix by galimim

Changed amber LED lightmask
Added amber & red blinker variants

Added following suitable parts:
suitable_for[]: "grid_cab"

suitable_for[]: "chassis_grid"

suitable_for[]: "s_bar"

suitable_for[]: "gr_bottom"

suitable_for[]: "v_bar"

suitable_for[]: "b_bar"

Added "markers" to suitable_for list.

Added new left & right strobe modes

Removed unused files

Textures for non-standard colours got completely re-done, textures size significantly reduced, all flares replaced, all flare definition colour data tweaked, "led + strobe" variant now casts light when strobe is off.

Tweaked amber and yellow flares, increased range of static flares by 0.1m; increased strobe flares range to 2.5m, tweaked the 3D model of the light housing.

Fixes to flare hookup files