Modify icons color

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

rtdata/icons/rawtherapee/scalable/apps/bidirectional-arrow-vertical-prelight.svg

@@ -1,68 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <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"
-   sodipodi:docname="bidirectional-arrow-vertical-prelight.svg"
-   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
-   inkscape:export-ydpi="96"
-   inkscape:export-xdpi="96"
-   inkscape:export-filename="/tmp/template.png"
    id="SVGRoot"
    version="1.1"
    viewBox="0 0 24 24"
    height="24px"
-   width="24px">
-  <sodipodi:namedview
-     inkscape:snap-page="true"
-     inkscape:snap-text-baseline="true"
-     inkscape:snap-center="true"
-     inkscape:snap-object-midpoints="true"
-     inkscape:snap-midpoints="true"
-     inkscape:snap-intersection-paths="true"
-     inkscape:snap-bbox-edge-midpoints="true"
-     inkscape:bbox-paths="true"
-     inkscape:snap-smooth-nodes="true"
-     inkscape:snap-nodes="true"
-     inkscape:object-paths="true"
-     inkscape:document-rotation="0"
-     inkscape:snap-bbox-midpoints="true"
-     inkscape:snap-grids="true"
-     inkscape:object-nodes="true"
-     inkscape:snap-others="true"
-     inkscape:bbox-nodes="true"
-     inkscape:snap-bbox="true"
-     inkscape:pagecheckerboard="false"
-     inkscape:grid-bbox="true"
-     inkscape:window-maximized="1"
-     inkscape:window-y="0"
-     inkscape:window-x="0"
-     inkscape:window-height="1041"
-     inkscape:window-width="1920"
-     showgrid="true"
-     inkscape:current-layer="layer1"
-     inkscape:document-units="px"
-     inkscape:cy="11.292624"
-     inkscape:cx="11.864052"
-     inkscape:zoom="29.288994"
-     inkscape:pageshadow="2"
-     inkscape:pageopacity="0"
-     borderopacity="1.0"
-     bordercolor="#666768"
-     pagecolor="#E0E1E2"
-     id="base">
-    <inkscape:grid
-       dotted="false"
-       empspacing="11"
-       originy="1"
-       originx="1"
-       id="grid1374"
-       type="xygrid" />
-  </sodipodi:namedview>
+   width="24px"
+   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
@@ -106,22 +53,18 @@
     </rdf:RDF>
   </metadata>
   <g
-     inkscape:label="Layer 1"
-     inkscape:groupmode="layer"
      id="layer1">
     <path
-       sodipodi:nodetypes="ccccc"
        id="path857"
        d="m 10.5,5.75 v 12.5 h 3 V 5.75 Z"
-       style="fill:#ff6400;fill-opacity:1;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
+       style="fill:#ff6400;fill-opacity:1.0;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1.0" />
     <path
-       sodipodi:nodetypes="ccccc"
        id="path853"
        d="m 10.49995,6.4999667 h -2.25 l 3.75,-5 3.75,5 h -2.25"
-       style="fill:#ff6400;fill-opacity:1;stroke:#000000;stroke-width:1px;stroke-linecap:square;stroke-linejoin:round;stroke-opacity:1" />
+       style="fill:#ff6400;fill-opacity:1.0;stroke:#000000;stroke-width:1px;stroke-linecap:square;stroke-linejoin:round;stroke-opacity:1.0" />
     <path
        id="path855"
        d="M 10.5,17.5 H 8.25 l 3.75,5 3.75,-5 H 13.5"
-       style="fill:#ff6400;fill-opacity:1;stroke:#000000;stroke-width:1px;stroke-linecap:square;stroke-linejoin:round;stroke-opacity:1" />
+       style="fill:#ff6400;fill-opacity:1.0;stroke:#000000;stroke-width:1px;stroke-linecap:square;stroke-linejoin:round;stroke-opacity:1.0" />
   </g>
 </svg>