Add label color support to pin menu

**Issue by [Auda35](https://github.com/Auda35)**
_Thursday Nov 10, 2016 at 22:24 GMT_
_Originally opened as https://github.com/CQUI-Org/cqui/issues/71_

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Firstly, congratulations for your work, the mod is becoming amazing.
I really like the new Map Pins with the districts and the wonders icons, but i think it is failing to take advantage of all its potential. What I would like is to use this system not only for planification of future wonders or districts but to assign labels to the map to name Features (mountains, forests, lakes, rivers, deserts) and Regions on the map. Something similar to the Map Labels mod for civ 5 [http://forums.civfanatics.com/threads/map-labels.530637/](url)
I've tried to edit it for myself and this is what i've got.
What i miss are icons for rivers and other features.
Could it be possible to add icon for rivers, mountains, jungles, natural wonders, etc the same way you've added for districts? Or if you dont like the idea could you indicate me how can i add them for my personal use? Thanks in advance and excuse my poor english, obviously is not my native language.

No files or tests are named. Start by locating the pin menu implementation and reviewing how district and wonder icons are handled; confirm the intended scope for label colors and feature icons before changing anything. Done should mean the agreed labels display the requested colors or icons in the map pin menu.

Written by the indexing model from the issue text.