[3.0] JPA tests refactor via backport from 4.0 branch

[rfelcman]

Main target of this change is make JPA tests more flexible and more simple for code changes.
This change is done via backport of org.eclipse.persistence.jpa.testapps Maven module/directory from 4.0 branch.
Additionally following changes had to be implemented to make pass refactored tests thru build/compilation and execution.

Changes:

• Test structure change is reflected in Jenkins pipelines and GitHub actions
  • Build fixes:
    • Parent/root pom.xml
      • eclipselink-testbuild-plugin added
      • maven-jar-plugin execution settings changed - default-jar
        org.eclipse.persistence.bundles fix to refect change above
      • AspectJ dependencies added due org.eclipse.persistence.jpa.testapps.metamodel.aspectj
    • Complete replacement of org.eclipse.persistence.jpa.test.framework from 4.0
    • org.eclipse.persistence.nosql - test refactor as JPA tests are moved into org.eclipse.persistence.jpa.testapps.nosql
    • org.eclipse.persistence.oracle.test - test refactor as JPA tests are moved into org.eclipse.persistence.jpa.testapps.oracle
    • Code changes due backport
      • org.eclipse.persistence.testing.tests.weaving.SimpleWeaverTestSuite#readStreamContentsIntoByteArray change for reflect compiler source 8
      • org.eclipse.persistence.testing.framework.jpa.junit.JUnitTestCase#isSelectForUpateNoWaitSupported(org.eclipse.persistence.internal.databaseaccess.Platform)
        isMariaDB() call removal as MariaDB is not implemented in 3.0
      • org.eclipse.persistence.testing.framework.server.SpringPlatform import org.eclipse.persistence.testing.framework.jpa.server.ServerPlatform
      • org.eclipse.persistence.descriptors.DescriptorCustomizer -> org.eclipse.persistence.config.DescriptorCustomizer
      • org.eclipse.persistence.sessions.SessionCustomizer -> org.eclipse.persistence.config.SessionCustomizer
      • org.eclipse.persistence.sessions.DataRecord -> org.eclipse.persistence.sessions.Record
      • org.eclipse.persistence.jpa.testapps.advanced module to fix Maven compile-with-processor goal for *_ classes
        Fixed by:
        Make canonical model processor usable on the modulepath 63b78fe
        Canonical processor fails on entities shared across persistence units #1678: Canonical processor fails on entities shared across persistence units #1699 #1678: Canonical processor fails on entities shared across persistence units #1699
      • org.eclipse.persistence.testing.framework.SimpleSessionLogWrapper added/moved into org.eclipse.persistence.core.test.framework
      • org.eclipse.persistence.testing.framework.TestContext moved from org.eclipse.persistence.core.test into org.eclipse.persistence.core.test.framework
      • org.eclipse.persistence.testing.framework.TestDataSource moved from org.eclipse.persistence.core.test into org.eclipse.persistence.core.test.framework
      • org.eclipse.persistence.jpa.testapps.metamodel.aspectj added Maven properties maven.compiler.release and maven.compiler.testRelease into parent pom
      • OracleAqHelper, OracleDBPlatformHelper, ProxyAuthenticationUsersAndProperties, SessionExchanger move into org.eclipse.persistence.core.test.framework
        -OracleConnectionPoolHelper move from org.eclipse.persistence.oracle.test into org.eclipse.persistence.core.test.framework
      • Classes from org.eclipse.persistence.testing.models.jpa.* in org.eclipse.persistence.oracle.test are moved under org.eclipse.persistence.jpa.testapps.oracle sub modules.
  • Test execution fixes:
    • org.eclipse.persistence.jpa.test:
      • org.eclipse.persistence.testing.tests.jpa.dynamic.simple.AllTests - Fix test failure in handling DynamicEntities dc8ff89
    • org.eclipse.persistence.jpa.testapps.advanced:
      • Bugfix: Lazy collections are fetched on detach Lazy collections are fetched on detach #2017, StackOverflowError because of cyclic DETACH StackOverflowError because of cyclic DETACH #1577 - backport from PR [master] detach() fixes #2037
      • Bugfix: Duplicate objects in UnitOfWorkImpl.primaryKeyToNewObjects Duplicate objects in UnitOfWorkImpl.primaryKeyToNewObjects #1950 - backport from PR [4.0] fix #1950 Duplicate objects in UnitOfWorkImpl.primaryKeyToNewObjects - backport from master #2177
      • Bugfix: Issue with multiple aliases against same table - backport from PR fix: issue with multiple aliases against same table #1761
    • org.eclipse.persistence.jpa.testapps.composite.advanced:
      • Bugfix: https://bugs.eclipse.org/bugs/show_bug.cgi?id=558887 member of composite persistence unit with eclipselink.composite-unitmember=true gives NPE in EntityManagerSetupImpl#preInitializeCanonicalMetamodel - backport from PR member of composite persistence unit with eclipselink.composite-unitmember=true gives NPE in EntityManagerSetupImpl#preInitializeCanonicalMetamodel #1569
    • org.eclipse.persistence.jpa.testapps.jpaadvancedproperties:
      • New feature: New PersistenceUnit property - eclipselink.login.encryptor - backport from PR [4.0] New PersistenceUnit property - eclipselink.login.encryptor - backport from master #2126
    • org.eclipse.persistence.jpa.testapps.jpql:
      • Bugfix: Issue Error execution delete operation without identification_variable #1727 - Fixed missing default FQN entity alias name. backport from PR Issue #1727 - Fixed missing default FQN entity alias name. #1729
    • org.eclipse.persistence.jpa.testapps.xml.extended.composite.advanced:
      • Bugfix: JUnitTestCaseHelper.java From commit "make xml.extended.composite tests deployable" 202d992
  • Jenkins pipeline change