Added / Changed :

- Changed layout, power display is now with the other things
- Changed how power fluctuate and how power bonus works, it's now based on player's data and no more on managers count
- Added a debug key d that show/hide particles count on right bottom corner, it will help me to optimize/enhance the game
- Power decrease over time, 1% per second.
- Power fluctuation is how unstable the power is, means it can increase or decrease randomly, bigger it is more unstable it become

Temporary gameplay changes :    

- Power fluctuation and power bonus are based on player's level : ( later you will have to manually upgrade them )
        - Power fluctuation = 1 + level / 10 -> It will increase power
        - Power bonus = level / 10 -> Gold bonus when power is near 100%