allow to pass single string to file as parse from and cid out of it

func get_and_cache(
    node: PeerId,
    cid: CID,
    from: Multiaddr,
    error: string, string -> ()
) -> ?CID:

func get_and_cache(
    node: PeerId,
    cidAddress: Multiaddr,,
    error: string, string -> ()
) -> ?CID:

so that when client uploaded it can use same link to file he got to pass to aqua, without parsing

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