Remove arrow dependency in cuIO by implementing a host_buffer_source

[vuule]

Currently we use arrow::io::BufferReader to implement a zero-copy datasource for host buffers. This is a feature we could implement ourselves and remove the last of arrow dependency in cuIO.

A requirement for this source type would be to avoid copying the data when calling std::unique_ptr<datasource::buffer> host_read(size_t offset, size_t size). This is what device_buffer_source alrady does in its device_read implementation.

[ZelboK]

Can I take this

[vyasr]

Related to #15193

[ZelboK]

I believe this should be closed per #15189 @vyasr @vuule

[jakirkham]

Should we close this or is there more to do here?

[vyasr]

Thanks for the ping @ZelboK! Yes, this was resolved by #15189.