Several Changes

Addded a file for the level designers in the 'Script Requests' folder.
Please read at your convenience.

Added some GUI ideas and laid out some goals for myself there so others
know what is going on regarding that. Please feel to post your ideas and
suggestions, the more the merrier!

Updated the NPC module and some of the elements of the boatman test NPC.
NPC will now allow dialog requests only if they have that ability.
Dialogs will not attempt to open if there is one open already.
NPCs will face the player and will not move during player interaction.
Next: Disallow player action or movement during dialog with NPCs.
Several other changes.