Version 0.1.0 release

This is a first version of FFI and API bindings to libhinawa 2 for ecosystem
of Rust language. It includes two crates:

* hinawa-sys crate includes unsafe FFI bindings used by safe API bindings
* hinawa crate includes safe API bindings

The crate includes below public structures:

* hinawa::FwNode
* hinawa::FwReq
* hinawa::FwResp
* hinawa::FwFcp
* hinawa::SndUnit
* hinawa::SndEfw
* hinawa::SndDice
* hinawa::SndDg00x
* hinawa::SndMotu
* hinawa::SndTscm

Each of structure has public trait with prefix 'Ext'; for example
'hinawa::FwNodeExt' for 'hinawa::FwNode'. Although the structure and trait
is generated by gtk-rs/gir, they doesn't includes a few functionalities.
For them, public trait is manually written and named with 'ExtManual'; for
example 'hinawa::FwNodeExtManual' for 'hinawa::FwNodeExt'.

The crate includes below public enums:

* hinawa::FwRcode
* hinawa::FwTcode
* hinawa::SndUnitType

Unfortunately, no documentation is produced. Users should read actual
codes for these stuffs.