Modify icons color

- Update icon from color "2a7fff" to "cccccc"
- Update .svg files with last Inkscape version

rtdata/icons/rawtherapee/scalable/apps/panel-to-left.svg

@@ -2,59 +2,16 @@
 <!-- Created with Inkscape (http://www.inkscape.org/) -->
 
 <svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    width="24px"
    height="24px"
    viewBox="0 0 24 24"
    version="1.1"
    id="SVGRoot"
-   inkscape:export-filename="/tmp/template.png"
-   inkscape:export-xdpi="96"
-   inkscape:export-ydpi="96"
-   inkscape:version="0.92.2 2405546, 2018-03-11"
-   sodipodi:docname="panel-to-left.svg">
-  <sodipodi:namedview
-     id="base"
-     pagecolor="#E0E1E2"
-     bordercolor="#666768"
-     borderopacity="1.0"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:zoom="34.25"
-     inkscape:cx="12"
-     inkscape:cy="12"
-     inkscape:document-units="px"
-     inkscape:current-layer="layer1"
-     showgrid="true"
-     inkscape:window-width="1920"
-     inkscape:window-height="1019"
-     inkscape:window-x="0"
-     inkscape:window-y="0"
-     inkscape:window-maximized="1"
-     inkscape:grid-bbox="true"
-     inkscape:pagecheckerboard="false"
-     inkscape:snap-bbox="true"
-     inkscape:bbox-nodes="true"
-     inkscape:snap-others="false"
-     inkscape:object-nodes="false"
-     inkscape:snap-grids="true"
-     inkscape:snap-bbox-midpoints="false"
-     inkscape:bbox-paths="false"
-     inkscape:snap-bbox-edge-midpoints="true">
-    <inkscape:grid
-       type="xygrid"
-       id="grid1374"
-       originx="1"
-       originy="1"
-       empspacing="11"
-       dotted="false" />
-  </sodipodi:namedview>
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
   <defs
      id="defs815" />
   <metadata
@@ -98,21 +55,17 @@
     </rdf:RDF>
   </metadata>
   <g
-     id="layer1"
-     inkscape:groupmode="layer"
-     inkscape:label="Layer 1">
+     id="layer1">
     <path
-       inkscape:connector-curvature="0"
-       style="display:inline;opacity:0.9;fill:#2a7fff;fill-opacity:1;stroke:none;stroke-width:0.03482621"
+       style="display:inline;opacity:0.9;fill:#cccccc;fill-opacity:1.0;stroke:none;stroke-width:0.03482621"
        d="m 2.999999,12.000005 5,-3.750003 1e-6,7.499997 z"
        id="path2876" />
     <path
        id="rect899"
        d="m 21,1 -5,0 v 22 h 5 z M 20,3.5 A 1.5,1.5 0 0 1 18.5,5 1.5,1.5 0 0 1 17,3.5 1.5,1.5 0 0 1 18.5,2 1.5,1.5 0 0 1 20,3.5 Z m 0,13 A 1.5,1.5 0 0 1 18.5,18 1.5,1.5 0 0 1 17,16.5 1.5,1.5 0 0 1 18.5,15 1.5,1.5 0 0 1 20,16.5 Z m 0,4 A 1.5,1.5 0 0 1 18.5,22 1.5,1.5 0 0 1 17,20.5 1.5,1.5 0 0 1 18.5,19 1.5,1.5 0 0 1 20,20.5 Z"
-       style="opacity:0.7;fill:#2a7fff;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:normal"
-       inkscape:connector-curvature="0" />
+       style="opacity:0.7;fill:#cccccc;fill-opacity:1.0;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:normal" />
     <rect
-       style="opacity:0.7;fill:#2a7fff;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:normal"
+       style="opacity:0.7;fill:#cccccc;fill-opacity:1.0;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:normal"
        id="rect901"
        width="2"
        height="8"