Fix #1080

What have you done in this MR?

• fix door interaction;
• add bones drop for Khazard Guards [253,254];

Are there any tricky things testers should keep an eye out for?

• Yes.

• I have tested these changes thoroughly.

• This requires extra testing due to changes to architecture or other similarly risky changes.

• I used the Thanos Tool for any JSON edits where possible, and have attached screenshots of any changes [1].

• I acknowledge that this contribution will be released under the AGPL license.

[1]