Add the FlipCTL sub-project

[NickVolynkin]

FlipCTL is a new sub-project of Flipper One development. It needs a top-level documentation section.

Repositories:

• https://github.com/flipperdevices/flipctl
• https://github.com/flipperdevices/flipctl-fonts

I plan to do this task myself, but I'm also open to contributions and help. If you want to take this task, please write a comment first.

❗ If you take this task, please don't generate a project description or a contribution guide using AI. It's better to say a few human words than to post pages of generated text. No one likes to be greeted with neuroslop when they want to join and contribute. We respect our community and communicate as humans, not AI.

[FallenAeon]

Hi! I’d love to help put together the documentation for this. I could write a draft covering the basics of what it is and how to get started. Let me know if you're good with me giving it a try!