startup banner: original SVG added

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@65609 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/images/startup_banner.txt

@@ -0,0 +1,23 @@
+Startup banner source file corresponding to the latest version uploaded
+in February : https://trac.osgeo.org/grass/changeset/64480
+
+The SVG file was generated with Inkscape. Needs the following fonts to
+display correctly which can be downloaded at:
+
+- Fira sans : http://www.fontsquirrel.com/fonts/fira-sans (common RPM package name: mozilla-fira-sans-fonts)
+- EB Garamond : http://www.fontsquirrel.com/fonts/eb-garamond)
+
+Contributor:
+Vincent Bain <bain@toraval.fr>
+
+------------------------
+Font installation:
+- Fira sans: use package manager
+- EB Garamond: 
+
+sudo su
+cd /usr/share/fonts/
+mkdir eb-garamond
+cd eb-garamond/
+unzip /tmp/eb-garamond.zip
+