Improve Lyo Store for use in the persistent scenario

[berezovskyi]

Description

• Allows the Store to be close()'d and the QueryExecutor to release() its connection to the SPARQL engine.
• (minor) stops internal use of GraphStore which is dropped in newer Jena versions

Checklist

• This PR adds an entry to the CHANGELOG. See https://keepachangelog.com/en/1.0.0/ for instructions. Minor edits are exempt.
• This PR was tested on at least one Lyo OSLC server or adds unit/integration tests.
• This PR does NOT break the API. API is extended in this PR.

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WIP the client module fails the build due to kotlin/javadoc issues.

• Fix the TRS client build here or in another PR
• Remove irrelevant perf and TDB2 test code from SparqlStoreImplTest.java

[berezovskyi]

The PR not ready for merge yet but if you ignore a commented out module in the POM and a few irrelevent test cases, the code is ready for your review @jadelkhoury @jamsden

[berezovskyi]

Call https://github.com/eclipse/lyo/blob/master/store/store-core/src/main/java/org/eclipse/lyo/store/StorePool.java close

[berezovskyi]

@jadelkhoury ready for your review