Add "GNU-like" project files to repository

Create the "standard" files that should accompany a GNU-like project
release: 'AUTHORS', 'ChangeLog', 'COPYING', 'INSTALL', 'NEWS', 'README',
and 'THANKS'.

These files are created by Automake and help to organise history, contributions,
and structure. This makes them important for deadlines, and marking authenticity
of work.

At the current moment most of the aforementioned files contain no
content (with the exception of 'NEWS' and contains a brief description
of release v0.1.0, 'ChangeLog' containing the modifications of this
commit, and 'README' presenting a brief description of the project).