Add jigsaw

Required

• The app complies with the inclusion criteria
• The original app author has been notified (and does not oppose the inclusion)
• All related fdroiddata and RFP issues have been referenced in this merge request (there are none)
• Builds with fdroid build and all pipelines pass
  • currently fails to build both architectures in 1 hour, but it succeeds on my local machine (with gradlew instead)

Strongly Recommended

• The upstream app source code repo contains the app metadata (summary/description/images/changelog/etc) in a Fastlane or Triple-T folder structure
• Releases are tagged

Suggested

• External repos are added as git submodules instead of srclibs
• Enable Reproducible Builds
  • can be added later once I can reproduce and upload godot builds
• Multiple apks for native code

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My mother enjoys the game, maybe others will as well :)