HHH-7902 Replace JDBC proxies with a set of contracts/helpers

HHH-7902 Merged JdbcResourceRegistry into JdbcCoordinator.  Parts of
LogicalConnection moved into JdbcCoordinator as well.

HHH-7902 Replaced Statement#close and ResultSet#close calls with
JdbcCoordinator#release

HHH-7902 Enforced the use of StatementPreparer, instead of Connection

HHH-7902 ResultSetExtractor.  Replaced all instances of execute,
executeQuery, executeUpdate, etc.

HHH-7902 Refactored AbstractReturningDelegate to give access to
jdbcCoordinator

HHH-7902 Corrected test failures

HHH-7902 Removed resource registry use from JdbcIsolation workers

HHH-7902 Corrected a few bugs in JdbcCoordinator and ResultSetExtractor.

HHH-7902 ResultSetExtractor -> ResultSetReturn.  Reworked proxy tests to
test the new APIs.

Conflicts:
	hibernate-core/src/main/java/org/hibernate/internal/SessionImpl.java
	hibernate-core/src/test/java/org/hibernate/sharedSession/SessionWithSharedConnectionTest.java
	hibernate-core/src/test/java/org/hibernate/test/dialect/functional/SQLServerDialectTest.java
	hibernate-core/src/test/java/org/hibernate/test/jdbc/proxies/BatchingTest.java
	hibernate-core/src/test/java/org/hibernate/test/transaction/jdbc/TestExpectedUsage.java
	hibernate-core/src/test/java/org/hibernate/test/transaction/jta/BasicDrivingTest.java
	hibernate-core/src/test/java/org/hibernate/test/transaction/jta/ManagedDrivingTest.java