Knocked a few issues off the github request list that were a few years old

• Improve Flatten spell using a new reverse_spiral build type
• Multi-line message support to all of messages.yml using \n
• Colorized all path names, mainly for Placeholder API support
• Fix some odd effects when deactiving Boon
• Fix magic mobs using Arrow and other projectile spells
• Improved support for using attributes in base spell parameters (cooldown, range, etc will show correctly in lore)
• Fixed graduate spell list in potter configs
• Cars in war configs can now go up 1 block slopes, and don't go invisible when shot
• Add Growth spell (applies bonemeal in a radius)