Removed PNGs in favor of SVGs

netbox_topology_views/static/netbox_topology_views/img/role-unknown.svg

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="35.465557mm"
+   height="35.465557mm"
+   viewBox="0 0 35.465557 35.465557"
+   version="1.1"
+   id="svg20924"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   sodipodi:docname="netbox-topology-views-icons.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview20926"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="false"
+     inkscape:zoom="0.4723932"
+     inkscape:cx="1020.3364"
+     inkscape:cy="643.5317"
+     inkscape:window-width="1920"
+     inkscape:window-height="1133"
+     inkscape:window-x="0"
+     inkscape:window-y="30"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs20921" />
+  <g
+     inkscape:label="Icons"
+     inkscape:groupmode="layer"
+     id="layer1"
+     inkscape:highlight-color="#1685fc"
+     transform="translate(-442.62001,-322.61998)">
+    <circle
+       style="display:inline;fill:#ffffff;fill-opacity:1;stroke:#9cc8f8;stroke-width:1.32292;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       id="role-unknown"
+       cx="460.35278"
+       cy="340.35275"
+       r="17.071318"
+       inkscape:label="role-unknown"
+       inkscape:export-filename="role-unknown.svg"
+       inkscape:export-xdpi="89.52"
+       inkscape:export-ydpi="89.52" />
+  </g>
+</svg>