Rebalance some details to the game and add some missing basic functionnalities.

GUI
- Shows TimePlayed, Ennemies Killed, In game date/hour.

Game Improvements
- Fire a tree destroy it (no more dead-tree forest). Configurable on new start game settings.
- Construction and Logistic robots are no more minable (so shitty to pick them everytime). Configurable on new start game settings.
- Give some basic stuff for a small electricity start rather than basic start. Configurable on new start game settings.
- Add some small balanced grid for vehicles. Configurable on new start game settings.
- Bitters are more agressive (more range detection, more range for pusuie you, etc...). Configurable on new start game settings.

Events
- Kill bitters will reward you with some ZToken which can be used to craft empowered items. Configurable on new start game settings.

New Items
- Add a "DigWater" item allowing to create some water areas

New Items with ZToken
- ZRadarMK1=A Radar revealing 10 sectors wide and scanning within 30 sectors distance.
- ZRadarMK2=A Radar revealing 20 sectors wide and scanning within 50 sectors distance.
- ZSolarPanel=A powerfull solar panel.

New Technologies
- Add a research to improve the battery autonomy from construction/logistic robots