[remote] RFC: Replace qPart with qXfer

[Vladimir Prus]

Daniel Jacobowitz wrote:

> `qXfer:OBJECT:read:ANNEX:OFFSET,LENGTH'
>      Read uninterpreted bytes from the target's special data area
>      identified by the keyword OBJECT.  Request LENGTH bytes starting
>      at OFFSET bytes into the data.  The content and encoding of ANNEX
>      is specific to the object; it can supply additional details about
>      what data to access.

Why do we need OBJECT+ANNEX addressing and opposed to just OBJECT? If
'OBJECT' is just a string, can't we push anything in it, without needed
extra level of addressing?

- Volodya