See https://stackoverflow.com/a/10334095/2018314 for details on sharing
resources among multiple projects in a solution.

The second colon (:) has strange effects in the "Output" window of
VisualStudio, messing up the text alignment.

There is no need to have this only as a post-build event, providing it
at this stage will allow us to include it in the assembly information.

Refers to #18

Refers to #18

Add the template files as links to the ATxService project, pointing to
the central "Solution Items" files and mark them for copying to the
build output location. Update the Make-Package script accordingly.

Refers to #28

Refers to #13

Refers to #2

Refers to #3

Plus also check if the repository's commit state is dirty and report
accordingly.

This is done using a git-hook script generating a text file which is
used as a resource by VS. The pre-build script in VS makes sure the file
is actually existing (using a default string) since otherwise the build
would fail.

The previously used "Resources" folder is not a good location for them
as they are not really part of the application itself.