Patch 0.0.13

Hello all, Weekend is coming and here's another patch to make the game more enjoyable. Have fun!

Changelog:

## [0.0.13] 
### Added 
- New range enemy (Will only spawn after 3 days)
- Shovel NPC Attack added
### Changed
- Generator needs to be built before you can send train out for new survivors 
- Remove barrels until shadows fixed (working to optimize game will add back next version) 
- Remove cable generator
- Civilian NPC proper locations to move at barricades and resource and construction sites
- Shovel NPC proper locations to move at barricades and resource and construction sites
- Civilian NPC Mushroom patch if no more collect will go idle 
- Shovel NPC Mushroom patch if no more collect will go idle
### Fixed 
- None