[FL-2627] Plugins API

[DrZlo13]

What's new

• Added support for running applications from SD card (FAPs - Flipper Application Packages)
• Added plugin_dist target for fbt to build FAPs
• All apps of type FlipperAppType.EXTERNAL and FlipperAppType.PLUGIN are built as FAPs by default
• Updated VSCode configuration for new fbt features - re-deploy stock configuration to use them
• Added debugging support for FAPs with fbt debug & VSCode
• Added public firmware API with automated versioning
• Added docs on new features: AppManifests.md, AppsOnSDCard.md. Read them!

Verification

• Read docs, build some apps, deploy them to /ext/apps
• Try running & debugging them

Checklist (For Reviewer)

• [ ] PR has description of feature/bug or link to Confluence/Jira task
• [ ] Description contains actions to verify feature/bugfix
• [ ] I've built this code, uploaded it to the device and verified feature/bugfix

[github-actions[bot]]

Compiled firmware for commit 57689a1e:

• 📦 Update package
• 📥 DFU file
• ☁️ Web updater

[thisisALPINE]

I compiled the firmware and flashed it onto my Flipper. After pressing the back arrow 3 times for the unlock, the Flipper freezes completely. Probably something to look into?

[richmans]

This is awesome! Any docs for this yet?

[github-actions[bot]]

PVS-Studio report for commit 57689a1e:

• Report