PR #100062 introduced BUFFER_USAGE_DEVICE_ADDRESS_BIT.
However it did so by adding a boolean to uniform_buffer_create(), called
"bool p_enable_device_address".
This makes maintaining backwards compatibility harder because I am
working on another feature that would require introducing yet another
bit flag.
This would save us the need to add fallback routines when the feature I
am working on makes it to Godot 4.5.
Even if my feature doesn't make it to 4.5 either, this PR makes the
routine more future-proof.
This PR also moves STORAGE_BUFFER_USAGE_DEVICE_ADDRESS into
BUFFER_CREATION_DEVICE_ADDRESS_BIT, since it's an option available to
both storage and uniforms.
This PR also moves the boolean use_as_storage into
BUFFER_CREATION_AS_STORAGE.
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