provide a symbolic variant of the app icon

- used for the app menu and the High Contrast theme

https://bugzilla.gnome.org/show_bug.cgi?id=745789

data/icons/Makefile.am

@@ -7,7 +7,8 @@ data_icons_public_icons = \
 	hicolor_apps_24x24_gitg.png \
 	hicolor_apps_32x32_gitg.png \
 	hicolor_apps_48x48_gitg.png \
-	hicolor_apps_256x256_gitg.png
+	hicolor_apps_256x256_gitg.png \
+	hicolor_apps_scalable_gitg-scalable.svg
 
 data_icons_gtk_update_icon_cache = $(GTK_UPDATE_ICON_CACHE) -f -t
 

data/icons/hicolor_apps_scalable_gitg-symbolic.svg

@@ -0,0 +1,27 @@
+<?xml version='1.0' encoding='UTF-8' standalone='no'?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg xmlns:cc='http://creativecommons.org/ns#' xmlns:dc='http://purl.org/dc/elements/1.1/' sodipodi:docname='gitg-symbolic.svg' height='16' id='svg7384' xmlns:inkscape='http://www.inkscape.org/namespaces/inkscape' xmlns:osb='http://www.openswatchbook.org/uri/2009/osb' xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#' xmlns:sodipodi='http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd' xmlns:svg='http://www.w3.org/2000/svg' version='1.1' inkscape:version='0.91 r13725' width='16' xmlns='http://www.w3.org/2000/svg'>
+  <metadata id='metadata90'>
+    <rdf:RDF>
+      <cc:Work rdf:about=''>
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource='http://purl.org/dc/dcmitype/StillImage'/>
+        <dc:title>Gnome Symbolic Icon Theme</dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <sodipodi:namedview inkscape:bbox-paths='true' bordercolor='#666666' borderopacity='1' inkscape:current-layer='layer9' inkscape:cx='-13.38958' inkscape:cy='8.6271321' gridtolerance='10' inkscape:guide-bbox='true' guidetolerance='10' id='namedview88' inkscape:object-nodes='false' inkscape:object-paths='false' objecttolerance='10' pagecolor='#555753' inkscape:pageopacity='1' inkscape:pageshadow='2' showborder='false' showgrid='false' showguides='true' inkscape:snap-bbox='true' inkscape:snap-bbox-midpoints='false' inkscape:snap-global='true' inkscape:snap-grids='true' inkscape:snap-nodes='true' inkscape:snap-others='false' inkscape:snap-to-guides='true' inkscape:window-height='1376' inkscape:window-maximized='1' inkscape:window-width='2560' inkscape:window-x='0' inkscape:window-y='27' inkscape:zoom='1'>
+    <inkscape:grid empspacing='2' enabled='true' id='grid4866' originx='-281.99979' originy='-341.99988' snapvisiblegridlinesonly='true' spacingx='1px' spacingy='1px' type='xygrid' visible='true'/>
+  </sodipodi:namedview>
+  <title id='title9167'>Gnome Symbolic Icon Theme</title>
+  <defs id='defs7386'>
+    <linearGradient id='linearGradient7212' osb:paint='solid'>
+      <stop id='stop7214' offset='0' style='stop-color:#000000;stop-opacity:1;'/>
+    </linearGradient>
+  </defs>
+  <g inkscape:groupmode='layer' id='layer9' inkscape:label='apps' style='display:inline' transform='translate(-522.99999,124.99988)'>
+    
+    <path inkscape:connector-curvature='0' d='m 531.0002,-124.92187 c -0.25108,0 -0.50701,0.0907 -0.70599,0.27625 l -2.20026,2.05187 1.75,1.75 c 0.19673,-0.0948 0.42325,-0.15625 0.65625,-0.15625 0.82843,0 1.5,0.67157 1.5,1.5 0,0.233 -0.0614,0.45952 -0.15625,0.65625 l 1.44757,1.44757 c 0.19673,-0.0948 0.42325,-0.15625 0.65625,-0.15625 0.82843,0 1.5,0.67157 1.5,1.5 0,0.82843 -0.67157,1.5 -1.5,1.5 -0.82843,0 -1.5,-0.67157 -1.5,-1.5 0,-0.22264 0.0693,-0.43501 0.15625,-0.625 l -1.47882,-1.47882 c -0.0427,0.0196 -0.0802,0.0469 -0.125,0.0625 l 0,3.1875 c 0.58641,0.20384 1,0.75041 1,1.40625 0,0.82843 -0.67157,1.5 -1.5,1.5 -0.82843,0 -1.5,-0.67157 -1.5,-1.5 0,-0.65584 0.41359,-1.20241 1,-1.40625 l 0,-3.1875 c -0.58641,-0.20384 -1,-0.75041 -1,-1.40625 0,-0.21746 0.0418,-0.43846 0.125,-0.625 l -1.75,-1.75 -4.01812,4.16651 c -0.37775,0.3917 -0.38479,1.0272 0,1.41198 l 6.93713,6.93713 c 0.38478,0.38479 1.0272,0.38479 1.41198,0 l 6.93713,-6.93713 c 0.38479,-0.38478 0.38479,-1.02719 0,-1.41198 l -6.93713,-6.93713 c -0.19239,-0.19239 -0.45491,-0.27625 -0.70599,-0.27625 z' id='rect12952' sodipodi:nodetypes='ssccssccssssccccsssccsccssssssss' style='color:#000000;display:inline;overflow:visible;visibility:visible;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:1;marker:none;enable-background:new'/>
+  </g>
+</svg>