add all svgs to org.eclipse.equinox.p2.ui bundles

This commit adds SVGs for all icons in the bundles `org.eclipse.equinox.p2.ui`,
`org.eclipse.equinox.p2.ui.admin`,
`org.eclipse.equinox.p2.ui.admin.rcp`,
`org.eclipse.equinox.p2.ui.discovery`,
`org.eclipse.equinox.p2.ui.importexport`,
`org.eclipse.equinox.p2.ui.sdk` and `org.eclipse.equinox.p2.ui.sdk.scheduler` except for the following as it is not available as SVG yet:

org.eclipse.equinox.p2.ui.importexport/icons/obj16/install-handler.svg

Author: Michael Bangas

bundles/org.eclipse.equinox.p2.ui.admin.rcp/META-INF/MANIFEST.MF

@@ -12,3 +12,4 @@ Require-Bundle: org.eclipse.ui,
 Bundle-ActivationPolicy: lazy
 Export-Package: org.eclipse.equinox.internal.p2.ui.admin.rcp;x-internal:=true
 Automatic-Module-Name: org.eclipse.equinox.p2.ui.admin.rcp
+Require-Capability: eclipse.swt;filter:="(image.format=svg)"