Album additions: Stable Time Loops and Paradoxes 2 & 3

[towerofnix]

Adds STLaP 2 and STLaP 3, working from WIP YAMLs shared by Lilith.

Development:

• Towards #268
• Towards #499
• Towards #503
• Towards #280
• Merge alongside hsmusic/hsmusic-media#54

Progress:

• Stable Time Loops and Paradoxes 2
  • [x] Basic details review: names, artists, durations, cover artists
  • [x] Artwork files, including file extensions
  • [x] Listening links (YouTube only)
  • [x] Reference info from Bandcamp
  • [x] Booklet commentary
  • [x] Art tags
• Stable Time Loops and Paradoxes 3
  • [x] Basic details review: names, artists, durations, cover artists
  • [x] Artwork files, including file extensions
  • [x] Listening links (Bandcamp and YouTube)
  • [x] Reference info from Bandcamp
  • [x] Booklet commentary
  • [x] Art tags