SM console: move to EDT through queue (IDEA-92567)
move constant
XML PSI implementation moved to xml-psi-impl
registering the stuff moved to xml-psi-impl
use CompletionUtilCore
moving XML indexing dependencies to indexing-impl
XmlIdIndexer
register MetaRegistry and MetaDataContributor in CoreApplicationEnvironment
moving messages to XmlErrorMessages
moving filters around
XmlApplicationComponent with dependencies moved to xml-psi-impl
register XmlNamespaceIndex
register core implementation for ExternalResourceManager
add xml-psi-api and xml-psi-impl to upsource