Update to upstream version '0.0.22'
with Debian dir 804dc2c5fb2c26ceaef007aee70af9bbb1bd49c9

Update to upstream version '0.0.21'
with Debian dir ff437e79cd894f571d9954d542f81b59c69df6de

Related T335

Related T335
Related T933

Closes: T335

reincarnation of the old shw.model bin/ script, which is now gone

Update to upstream version '0.0.20'
with Debian dir 318875537a75b6a8d157dc5ac45174b925b7477b

Summary:
Add support for snapshot identifiers

Close T566.
Related to D268.

Test Plan: Unit tests included

Reviewers: zack, #reviewers!

Maniphest Tasks: T566

Differential Revision: https://forge.softwareheritage.org/D277

Update to upstream version '0.0.19'
with Debian dir ee8a9e81ad0c54a1d91e7d751d430852273a4488

Update to upstream version '0.0.18'
with Debian dir a0c7b3ef860e2792064c5b5c1a02596f8c72d74a

Close T709

This allows loaders to lazily load data: you can read from disk and transfer
only the contents that are really missing.

Summary:
This module is a reimplementation of swh.model.git, with the underlying goal of
replacing it and fixing T709 in the process.

Reviewers: #reviewers!

Differential Revision: https://forge.softwareheritage.org/D248

Currently just a stub (but with a hereby fixed anchor) to allow linking to it
from other part of the development documentation. Will be fillen later on with
an abstract description of the Software Heritage data model.