SchemaManager / autodetectschema / check namespace on default schema or its dependencies

[fxp]

In r8622, the schema manager autodetect schema add an extra check on default schema based on prime namespace comparison. When loading subtemplates and using an ISO profil as preferred schema, default schema usually does not match on primeNS usually.

Add prime namespace comparison for preferred schema dependency. If using an ISO profil as a preferredschema, then a subtemplate matching ISO19139 will be properly managed (instead of rejected since r8622).

[fxp]

Committed revision 9005.