add all svgs for org.eclipse.ui.intro bundles

This commit adds SVGs for all icons in the bundles `org.eclipse.ui.intro` and `org.eclipse.ui.intro.universal` except for the following as these are not available as SVG yet:

org.eclipse.ui.intro/etool16/restore_welcome.svg

Author: Michael5601

ua/org.eclipse.ui.intro.universal/META-INF/MANIFEST.MF

@@ -17,3 +17,4 @@ Bundle-Activator: org.eclipse.ui.internal.intro.universal.UniversalIntroPlugin
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Bundle-ActivationPolicy: lazy;exclude:="org.eclipse.ui.internal.intro.universal.contentdetect"
 Automatic-Module-Name: org.eclipse.ui.intro.universal
+Require-Capability: eclipse.swt;filter:="(image.format=svg)"