ISPN-3953 JPACacheStore should not load all entities in memory

* using Hibernate's Criteria.scroll()
* MySQL needs to setFetchSize(Integer.MIN_VALUE) to use streaming (JpaStore detects this based on Hibernate's dialect)
* Hibernate dependencies changed from provided to compile as we now really depend on Hibernate, not any JPA implementation

parent/pom.xml

@@ -474,6 +474,11 @@
             <artifactId>hibernate-annotations</artifactId>
             <version>${version.hibernate.annotations}</version>
          </dependency>
+         <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+            <version>${version.hibernate.core}</version>
+         </dependency>
          <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-entitymanager</artifactId>

persistence/jpa/pom.xml

@@ -34,6 +34,11 @@
       </plugins>
    </build>
    <dependencies>
+      <dependency>
+         <groupId>org.hibernate</groupId>
+         <artifactId>hibernate-core</artifactId>
+         <scope>provided</scope>
+      </dependency>
       <dependency>
          <groupId>org.hibernate.javax.persistence</groupId>
          <artifactId>hibernate-jpa-2.0-api</artifactId>