We're starting the version numbering afresh,
so all API is present from the start.

This tile source was intended to use by the
now removed Memphis renderer.

Use the Shumate name for identifiers and symbols.
Also remove left-over docs for the GTK+ widgetery.

GTK widgetary library

Allows using "build" as Meson build directory
without having it show up as untracked.

The intention is to re-write the main library
on top of GTK+ GSK (scene graph) instead of
Clutter.

Import code from the Meson branch of libchamplain.
Skip ChaneLog and NEWS (as these would later be
added from scratch).