Enabling SVGO automation with 'grunt-svgmin' and conservative
plugin settings to build step, among those:
- enable removeRasterImages and sortAttrs,
- disable cleanupIDs, removeDesc, removeTitle, removeViewBox &
  removeXMLProcInst and
- make use of pretty and multipass options.

Also updating SVG accordingly.

Bug: T185596
Change-Id: I8109820b294b4fe28e4ae5e2daa715d8454137b6