Add a packed argument to encode_base64.

Reintroduced the '=' padding modulo 3 characters from the original code from the mail kit,
and a packed option to avoid it.
Broadway uses this packed scheme to save bytes when sending many separate values.
TODO: merge this with the mail kit one somewhere?

An html5 <canvas> based drawing engine

This implements an html5 rendering engine.
Inspired by the Broadway GDK backend for Gnome.
Work in progress. For now it just connects and dumps debug output.

Add a packed argument to encode_base64.

Reintroduced the '=' padding modulo 3 characters from the original code from the mail kit,
and a packed option to avoid it.
Broadway uses this packed scheme to save bytes when sending many separate values.
TODO: merge this with the mail kit one somewhere?

An html5 <canvas> based drawing engine

This implements an html5 rendering engine.
Inspired by the Broadway GDK backend for Gnome.
Work in progress. For now it just connects and dumps debug output.