fix(marker): logical error when setting faceCamera

[NotSomething0]

Due to the way boolean values were being assigned, faceCamera would always evaluate to true because of its default value. This change fixes the logical error and ensures boolean properties are properly set.

[jag3dagster]

This looks like a similar logic error as #672. Could you update your logic to match the formatting of the feedback in that PR with a single line instead of these additional if blocks please?

[NotSomething0]

Updated, I left the boolean check instead of just checking for nil since DrawMarker expects a boolean and the game doesn't care what you pass as a truthy value as long as it isn't nil, 0 or false.

[jag3dagster]

Looks good to me @thelindat