1.1.0 - Save States, Mass, Attacking, and Nutrients

• Added ability to save and load steps
• Creatures now also require mass and nutrients to reproduce (as opposed to just energy).
• Added ability for creatures to attack
• Added more creature inputs.
• Added variation in food size
• Changed dead creatures to decay (Nutrients, energy, mass) over time instead of disappearing. They now only disappear when their mass is less than 0.
• Major performance optimisations, including creatures' brains to be calculated in parallel, and their visible objects to be evaluated in parallel via splitting world size into chunks.
• Replaced cardinal based movement with angle based movement
• Added cone of vision for creatures and visualisation for cone of vision on the selected and best creature (Cone of vision for best creature is only shown when network viewer is open, but it can be minimised).
• Changed creatures so that creatures that attempt to attack more than they eat are more red in colour. Creatures that attempt to eat more than they attack are more blue in colour. Creatures that do both a similar amount of times are more green in colour.
• Added button to hide UI and removed pressing the "0" key to hide the UI.
• Added ability to modify TPS. Target frame rate is locked to TPS. TPS is ignored while in fast mode but is still used for frame rate in fast mode.