fixed microbe healing wraparound bug (using mod)
fixed typo (=- should be ==)
fixed typo (interfers -> interferes)
refactored organelle creation code, organelles now initialized by OrganelleFactory
Merge branch 'master' of https://github.com/Revolutionary-Games/Thrive
Added photosynthesis, a chloroplast organelle, and environmental CO2 emitters.

Notes:
- Chloroplast organelle is placed in editor with hotkey [P]
- Water and sun are everywhere, so photosynthesis only requires CO2
- New OrganelleFactory streamlines microbe creation and modification
- definitions are now on the git repo
Merge pull request #172 from Revolutionary-Games/146-photosynthesis

Photosynthesis added. This also involves a refactor to how organelles are created, they now use factory for normalized creation.
Merge branch 'master' of https://github.com/Revolutionary-Games/Thrive into 131-savable-creatures

Conflicts:
	.gitignore
	scripts/microbe_editor/microbe_editor_hud.lua