Add script to automatically rescale SVG images - important to export them to PNGs

assets/layers/binocular/telescope.svg

@@ -1,22 +1,8 @@
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-<!-- Generator: Adobe Illustrator 17.0.2, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
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-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
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-</svg>
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+  <g id="surface1">
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