ANN: SweetAda on github

[Gabriele Galeotti <gabriele.galeotti.xyz@gmail.com>]

Hi all.

SweetAda has now a home in GitHub.
You can reach it @ https://github.com/gabriele-galeotti/SweetAda.

SweetAda is a lightweight development framework to create Ada systems on a wide range of machines. Please refer to https://www.sweetada.org.

SweetAda is now licensed under the terms of the MIT license.
RTS and LibGCC files keep their original license, which is a GCC
runtime library exception 3.1.

I've also building a new toolchain release, based on GCC 11.1.0, which will be uploaded in the next days both at SourceForge and SweetAda.org.

The committed branch has some minor changes from the last v0.8 package, and new interesting features, like the possibility to compile the RTS directly from sources, and a fully usability in an MSYS2 environment (for MSYS2 first download the new toolchain and be sure to select only the items you're interested in, because the build script is querying the Makefile and is very slow under that environment).

Yet I have very scarce time, and the documentation is thus painfully incomplete. But do not hesitate to ask.

G