Add rolling tape and refactor

[Boog900]

The tapes now use a trait to abstract their behaviour and the fixed sized tape and the cache are now wrappers.

Here is an example:

    pub(crate) rct_outputs: FixedSizedTape<RctOutput, CachedBlobTape<WholeBlobTape>>,

That type is the same as the old:

    pub(crate) rct_outputs: FixedSizedTape<RctOutput>,

This PR also adds a new RollingBlobTape, which allows removing data from the front and back.

[Boog900]

This has been reviewed by an LLM and an LLM wrote some tests. I wrote all the other code excluding that.