Camel PropertiesComponent ignores custom parser in Blueprint

Issue

• We have implemented a custom PropertiesParser which allows us to use system property placeholders in propertyPrefix and propertySuffix.

• In the use case the propertyPrefix is defined as ${container.stage}, where container.stage is a jvm option defined at container creation. The value is one of a, b and c.

• This works fine in Java DSL world (SCR bundle), but custom parser is ignored in Blueprint.