[Feature Request] Allow the user to toggle the ability to move through blocks in freecam

Disclaimer: Apologies if this feature already exists, as I am quite new to this mod.

Within the "Generic" tab, there should be a feature titled something along the lines of freeCameraBlockClip, or two seperate features titled "freeCameraOpaqueBlockClip" and "freeCameraTransparentBlockClip". Moreover, there could be a list of blocks that can be passed through in the "List" tab (blacklist and whitelist), overriding these toggles.

This feature should be added to expand the level of customizability players have while using this mod, and can make it seem more "fair" to some players.

This is on my todo list for after the mod rewrites. And since the new malilib version also supports server-side config overrides, this feature should be even more useful on some servers, if they want to allow free camera for building aid, but not for peeking under ground etc. So they will be able to lock those configs so that you can't move through blocks, and as a separate config also that you will get the suffocation overlay if you do go inside blocks with the camera.