added mime-info file (xml) and mailcap format

added mime icons


git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@905 bbaffbd6-741e-11dd-a85d-61de82d9cad9

share/mime/pycam.mime

+application/sla; pycam '%s'; description="Stereo Lithographic File"; test=test -n "$DISPLAY"; nametemplate=%s.stl

share/mime/pycam.xml

+<?xml version="1.0"?>
+<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
+  <mime-type type="application/sla">
+    <comment>Stereo Lithographic Files (solid 3D models)</comment>
+    <magic priority="60">
+      <match type="string" offset="0" value="solid"/>
+    </magic>
+    <glob pattern="*.stl"/>
+  </mime-type>
+</mime-info>
+