extract jps entities which can be used in the plugin to a separate module
add source root type for include paths
add mark as include root action
add include directory utils
remove facet include directories usage in ErlangPsiImplUtil
remove facet include directories usage in ErlangCompletionContributor
remove facet include directories usage in RebarProjectImportBuilder
remove facet include directories usage in ErlangFindIncludeQuickFix
fix #404: remove include directories logic from the erlang facet