Version 0.7.0 release

In the release, below trait methods are removed since they are deprecated
so long:

* FwFcpExtManual::transaction()
* FwReqExtManual::transaction()
* FwRespExtManual::get_req_frames()

FwNodeExtManual::config_rom() is renamed following to fashion of glib crate
v0.15.

Documentation is added by importing from gir file of libhinawa v2.5.1.

The hinawa::prelude module is added as a way to access to all of traits
and their implementations, while modules with the traits and
implementations becomes private.
-----BEGIN PGP SIGNATURE-----
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=MTwa
-----END PGP SIGNATURE-----