v2.1 - performance optimizations

🎉 New features

• Adds a new project filter to the DataStage connector, to limit which projects are synchronized
• Switches event mapper to be considered an experimental feature: will only be used if the event mapper connector is configured -- this also now means that no administrative privileges are needed for the Information Server user used to run the connectors
• Implements a basic caching mechanism that operates at the level of an Egeria request (covering multiple underlying Information Server requests), to improve performance of connectors
• Updated documentation to reflect the default use of https over http (as of Egeria 2.0)

🐞 Bug fixes

• Fixes a potential NullPointerException related to qualifiedNames in the DataStage connector
• Searching on all types previously attempt to search non-searchable types: this is now avoided

🔨 Dependencies

• Egeria core 2.1