Fix lamp drop action after respawn and some related things

[jaj22]

What type of PR is this.

1. Bug
2. Change
3. Enhancement

What have you changed and why?

• Fix bug where drop object action (for dropping lamps) wasn't added to player after respawn.
• Fix bug where actions were left on a dead player object.
• Fix bug where LTC actions could be added when disabled by params.

Also accidentally added the setOvercast functionality that solidifies the rain-removal tent option. Can't be bothered to unfuck git and separate it. Note that the overcast state changes very slowly, but it should prevent the rain from coming back.

Please specify which Issue this PR Resolves.

closes #2154
closes #1992

Please verify the following and ensure all checks are completed.

1. Have you loaded the mission in LAN host?
2. Have you loaded the mission on a dedicated server?

Is further testing or are further changes required?

1. No
2. Yes (Please provide further detail below.)

[killerswin2]

looks good