PlayerBots On Boats Fix

[bozimmerman]

This allows PlayerBots to follow players onto Boats, and disembark them when the player leaves.

The implemented behavior is that the Bot follows the player on to the Boat, at the position they were at after a few seconds, and then does not move until disembarked. There may be some visual "snapping", and multiple bots will end up on top of each other. Player movement on boats is almost entirely client-enforced, so this was a particularly troublesome fix, and took me months to figure out. I'm telling you this because I deserve pity :)

Trams and Lifts still don't work, but it's on my TODO list, after Pets. Now that I understand "Transport" (Ship) movement much better, these others should be simpler.

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This change is 

[AppVeyorBot]

✅ Build Mangos ZERO Server 22.04.131-vhfytkpk completed (commit f460941f43 by @bozimmerman)

[AppVeyorBot]

✅ Build Mangos ZERO Server 22.04.131-kvuoawnn completed (commit 4503cfd9ec by @bozimmerman)