Ability to add raw blocks / raw leaves

ipwb currently cannot add data as raw blocks. Benefits of raw blocks: they are faster and use up less storage space. Whenever ipwb adds something to ipfs it uses this python api: https://github.com/ipfs-shipyard/py-ipfs-http-client (ipfshttpclient). Documentation: https://ipfs.ssi.eecc.de/ipfs/QmSfSEXrkYzsLz4adKJzVe9zj8dT8V6X9rkXdXCenV35pQ/docs/http_client_ref.html Looking at this section: https://ipfs.ssi.eecc.de/ipfs/QmSfSEXrkYzsLz4adKJzVe9zj8dT8V6X9rkXdXCenV35pQ/docs/http_client_ref.html#ipfshttpclient.Client.add_bytes it says nothing about add_bytes() having an option to add raw blocks. Therefore, perhaps use a different thing which can add raw blocks, or modify the source code of that Python API to be able to do that. `ipfshttpclient/client/__init__.py` defines the add_bytes method/function. As I understand, ipfshttpclient is a wrapper or implementation that communicates with Kubo IPFS's core API. For example, that `__init__.py` file says ``` def add_bytes(self, data: bytes, **kwargs): """Adds a set of bytes as a file to IPFS. [...] """ body, headers = multipart.stream_bytes(data, chunk_size=self.chunk_size) return self._client.request('/add', decoder='json', data=body, headers=headers, **kwargs) @utils.return_field('Hash') @base.returns_single_item(dict) ``` which looks like an API call. Raw blocks normally look like this: https://gateway.pinata.cloud/ipfs/bafkreibr3eo4ryibk6yueswcgepfybw33nwngs4z4vmr4ck2ky43j7cn64 (starts with "bafk"). Kubo ipfs command to create it: "ipfs add --cid-version=1 setup.cfg".