feat(driver/gpio): funtion to read pin-holders (IDFGH-14020)

[bryghtlabs-richard]

Description

Add a GPIO layer function to get the state of GPIO pin holders.

This is useful when using GPIO pin holders to keep a peripheral enabled across a chip reset.
Each external peripheral's pins can be checked individually to see if the peripheral needs reconfigured(if pin holder was not enabled) or has already been enabled by a previous planned reset. An example of this would be a SPI LCD with a reset and chip-select line that must be kept high across a reset or risk garbage on the screen.

Related

Fixes #14841

Testing

I tested this on ESP32-S3 by holding my display signals before resetting the CPU, then printing them on startup. On a new power-cycle the holders were not engaged, on a reset the holders were engaged.

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