Separate the namespaces for Lucene and Elasticsearch analyzers

Description

This is necessary for (see the linked mailing list thread in particular).
This may not be absolutely required for HSEARCH-2418, but at the very least it makes things easier.
And finally, it relieves users from a unnecessary constraint.

Environment

None

Assignee

Yoann Rodière

Reporter

Yoann Rodière

Labels

None

Suitable for new contributors

None

Feedback Requested

None

Components

Fix versions

Priority

Major
Configure