Examples overhaul

[xen-42]

Todo:

• Add explanatory readme file to each folder
• Reorganize so that seeing what changes are being applied to a planet is more obvious
• Clean up the ship log and dialogue stuff because a lot of it is just nonsense now?
• Actually add a mild breadcrumb trail quest in the main solar system
• Clear out the Timber Hearth spawn because it's an absolute mess. Move a lot of that to Frigid Pygmy, make it so you respawn in that system, add an easy way to warp over from the spawn.

[MegaPiggy]