Shrew's Alien Infection

The first update, I hope you enjoy and thanks for the feedback on the mod so far!

- Added new alien growth stage - After 10 minutes a Quadromorph has a 50% chance to grow to an Onyxomorph
- Added 4 new structures - 'Capsule', 'Well', 'Factory' and 'Alien Complex'
- Added new fluid - 'Incubation Fluid'
- Added new blocks - 'Heavy ship glass pane', 'Heavy ship block panel', 'Ship pillar panel'
- Containment units now have a 1/3 chance of spawning Incubation Fluid when destroyed

- Fixed potential crash when Quadromorphs are on low hp

- Quadromorphs now gain resistance for 3 seconds when hit on low hp
- Increased rarity of 'Egg Room' structure
- Decreased rendering range of Alien Egg