Implement new idf-v5 I2C driver

[playduck]

This PR removes the legacy I2C driver from the SCCB and implements the newer version (see issues #649 )
All interfaces outside the SCCB are entirely unchanged and identical!
I've tested the project with an OV2640 on an ESP32-Cam board - it functions identically.

To keep these identical I had to translate the unique i2c slave address to their distinctive i2c_device_handle_t.
This requires saving both of these in an array of a locally defined struct.
I'm not sure if this is an ideal solution moving forward but as it doesn't break anything outside of the SCCB I think this is reasonable (This whole translation thing is further explained in a comment from line 51 onwards)

Currently this requires the esp-idf head version (not the latest release), as the code makes heavy use of the i2c_master_get_bus_handle function which is rather new (at the time of this PR).
The use of this function isn't required and could be changed.

Also of note:
I've translated the functions SCCB_Read16, SCCB_Write16, SCCB_Read_Addr16_Val16 and SCCB_Write_Addr16_Val16 as well. However it seems like these are entirely unused.
Perhaps these could be removed?

[me-no-dev]

Hi @playduck ! Thanks for the submission. I have one request, please have the new driver as new .c file. Maybe sccb-ng.c. That way we can make it use the proper driver depending on IDF version or configuration value. Now it replaces the current driver, which will break for older versions of IDF

[playduck]

I agree; I didn't think about breaking the older versions.
I now moved the driver to sccb-ng.c in the same directory.
I restored the old sccb.c and added a #warning deprecation message at the top, as the legacy I2C driver may be removed in future versions.
The CMake now conditionally includes either the new or the old version with a small comment explaining the reasoning behind this.

[playduck]

@me-no-dev any update on this?

[me-no-dev]

please remove this line. It will issue a warning on old IDF releases

[me-no-dev]

@playduck sorry for the delay. Looks good with just one remark :) please fix it and I will merge it

[playduck]

@me-no-dev No worries about the delay. I removed the warning.