Overview of all available FPP types and their use case

[SiboVG]

Pattern

An overview of all built-in FPP types and their use case, similar to the C++ documentation, but for FPP.

Rationale

For example, in the Led Blinker workshop, you learn to add some ports to Led.fpp:

@ Port receiving calls from the rate group
async input port run: Svc.Sched

@ Port sending calls to the GPIO driver
output port gpioSet: Drv.GpioWrite

But I have no idea where those port types come from, what other FPP port types exist, or what their typical use case is.