Alpha 0.4 - Upgrade System — Wild Growth TD Playtest Steam update #1383298

Added Meta Progression System using Silt as a meta currency. Permenent upgrades give a permanent benefit to future runs. Influences can be unlocked and added to a loadout which act as either positive or negative modifiers. Negative modifiers give score/silt multipliers based on difficulty. Save System implemented for Silt and Meta Progression System Balancing: Default lifeforce generation reduced from 10 to 6. Scaling cost of resource gathering buildings increased from 1 to 5. Increased Vine Lasher damage from 8 to 10. Increased attack speed from 1.5 to 1.4 Increased Bee attack speed from 1.5 to 1.4 Increased Water Fox damage from 8 to 14. Increased attack radius from 3 to 3.5. Increased health from 400 to 500 Reduced Water Element base wave knockback. Mini bosses and Bosses have higher resistance to knock back. Increased health from 400 to 450 Reduced Brambles damage from 8 to 5. Increa...