glowup v1.0.0

Added

• /glowup outfit lists a pet's level outfits, /glowup outfit <name> wears an unlocked one and /glowup outfit off takes it off. Clawd, the robot, the ghost and the egg each have three, unlocked at levels 3, 6 and 8, and a level-up wears the newest one. A Santa hat, party hat, nightcap or the dance headphones keep the head while they last.
• Idle variants. A pet sheet may carry idle2 and idle3 as rows 13 and 14; from level 5 the pet plays idle2 in place of idle about one time in eight when it settles, and from level 10 either variant. 12-row sheets stay valid, and the studio and PNG import take 1 to 14 rows, with only idle required.