Release-2019-06-24

Update code for v0.17

* Update Readme screenshots
* Online Player List sprite change, and add spacing
* GUI visible changed to element instead of style (silo, GUI)
* Encapsulate file logic (spawn-marker, death-marker-simple)
* Tasks module icon/colors improvement
* Auto research  icon/colors improvement, and logic update
* game-info style naming changes
* Player Init RIP axes