0.3.6 - Polish and Upcoming Multiplayer

This update does not come with any new features or content, but polishes the game.

Fixed repairing
- Repairing speed is now fixed.
- Multiple Villagers repairing does not affect repair speed of each individual Villager.
- Villagers can now repair Farm.
- Villager takes up farming after Farm is successfully repaired.

Enemy
- Changed layout of enemy base(s).
- Enemy base is easier to take down on BEGINNER difficulty.

Menus
- Updated design for main menus.
- Updated in-game menu to match new design of menus.
- Updated Victory and Game Over screens.

Minor optimisations
- No longer updating z index for resources in every update loop.
- Only updating visibility of objects standing on a tile when the tile's visibility count goes from 0 to 1 or 1 to 0.

General improvements
- Units are now visible through all buildings in the game.
- Updated farm efficiency indicators to show 2-10 instead of 1-9, to better reflect 0-100% efficiency.
- Advanced Woodcutting researched now shows whole title in research completed popup.
- Swapped positions of Slinger and Bowman in Archery.
- Fixed edges and borders of UI elements that used to look blurry.
- Consistent strength on shadows.

Multiplayer
- Added Multiplayer Button in Main Menu for upcoming multiplayer functionality.

Multiplayer in Development
Besides working on polish, our main focus at the moment is getting a multiplayer build up and running. 

So far we have implemented a lobby system. See image below:

We have a plan for how to implement the rest of the network code, but it's hard to estimate how long it will take.