add icons for file list and picture view toggles

core/img/actions/toggle-filelist.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g>
+  <rect rx=".5" ry=".5" height="4" width="4" y="1" x="1"/>
+  <rect rx=".5" ry=".5" height="1" width="9" y="2" x="6"/>
+  <rect rx=".5" ry=".5" height="4" width="4" y="6" x="1"/>
+  <rect rx=".5" ry=".5" height="1" width="9" y="7" x="6"/>
+  <rect rx=".5" ry=".5" height="4" width="4" y="11" x="1"/>
+  <rect rx=".5" ry=".5" height="1" width="9" y="12" x="6"/>
+ </g>
+</svg>

core/img/actions/toggle-pictures.svg

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g>
+  <rect rx=".5" ry=".5" height="6" width="6" y="1" x="1"/>
+  <rect rx=".5" ry=".5" height="6" width="6" y="1" x="9"/>
+  <rect rx=".5" ry=".5" height="6" width="6" y="9" x="9"/>
+  <rect rx=".5" ry=".5" height="6" width="6" y="9" x="1"/>
+ </g>
+</svg>