AI Integrations with Minimap System

[AndyTechGuy]

Terasology/Minimap is currently integrated into Metal Renegades, but is currently only used in two places: to indicate different building regions from DynamicCities, and to indicate the position of settlements.

The minimap system should be expanded to include more information from Metal Renegades. This can include the positions of AI characters, market characters, water sources, food sources, with different symbols for each. They can be implemented in a similar way to Terasology/DynamicCities#42,

• AI Characters Characteroverlay #47
• Market Characters Characteroverlay #47
• Water Sources
• Food Sources

[jdrueckert]

Pinging @AndyTechGuy to confirm that this is still valid and not already done as part of this year's GSoC project.