Expanded support for Libcamera Controls (ControlInfoMap and ControlInfo)

[SoZ0]

I believe i have implemented the rest of ControlInfoMap and ControlInfo and created a few methods to turn it into an iterator.

I have tested on my host machine (Libcamera 0.3.1, Fedora 40 - x86) and with cross compiling to arm64 (Libcamera 0.3.2, Debian Bookworm). The code works on both x86 and arm64 (tested with a compute module 4).

• Exposed the methods to get the name, id and type from the ControlID type directly but they have not been implemented rust side.
• Exposed a few of the methods to interact with ControlIdMap and plan to give it the same treatment as done with ControlInfoMap
• Made an Iterator for ControlInfoMap to allow rust to loop through the contents of the ControlInfoMap
• Implemented all of ControlInfo's methods with each of them returning their respective rust counterparts (min, max, def all returning ControlValue)
• Modified build.rs and tomls for libcamera to fix issues with not being able to compile with cross
• updated bindgen and cc to 0.70 and 0.3 respectively

I am working on a project that requires quite extensive information from libcamera so I will continue to make pull request as I expand libcamera-sys and libcamera to support the remaining missing implementation I need

[SoZ0]

I realized I skipped over the values method inside of ControlInfo. I have added an implementation that appears to work with the same systems mentioned before.

I also expanded on top of the libcamera-meta to allow getting the id and names of the ControlId/PropertyId from the enum directly.

[fishrockz]

hi if your doing this so you can cross compile i hope #48 should help, could you try it yourself to confirm?

[SoZ0]

Hey sorry for the hold up, yes it in fact did work! for cross and on my host machine.