Multiple Update and gameplay fix

1. Manual clicking has been switched to press and hold to produce. 

2. Only the Stockade (previously Hall) can be produced manually.

3. Research is now generated by killing enemies, and the research guild converts those into research points.

4. Updated functions and building consumption.

5. Adjusted for faster gameplay.

6. Deployed units can now be controlled!

7. Reduced Catapult cost from 50 to 10.

8. Changed resource 'Population' to 'Recruit'.

9. Switching function is only available for the Furnace and Tower.

10.Mines automatically switch their sprite based on the deposit they are placed on.

11.Foresters can only be built on forest resources.

12.Quarries must be built on stone resources.

13.Mines can only be built on tiles with deposits.

14.All other buildings can only be constructed on flat surfaces.