Add required capability for SVG support to org.eclipse.ui#2871

HeikoKlare wants to merge 2 commits intoeclipse-platform:mastereclipse-platform/eclipse.platform.ui:masterfrom

HeikoKlare:svg-capability-org.eclipse.uiHeikoKlare/eclipse.platform.ui:svg-capability-org.eclipse.uiCopy head branch name to clipboard