Port ability to use @Transient with @Temporal

[alexbudarov]

This example entity fails to be enhanced in Jmix:

@JmixEntity
@Table(name = "PRODUCT")
@Entity
public class Product {
    @JmixGeneratedValue
    @Column(name = "ID", nullable = false)
    @Id
    private UUID id;

    @JmixProperty
    @Transient
    @Temporal(TemporalType.DATE)
    private Date refreshTs;

    @Column(name = "NAME")
    private String name;

    @Column(name = "PRICE", precision = 19, scale = 2)
    private BigDecimal price;
// ...
}

Error:

Exception in thread "main" Local Exception Stack: 
Exception [EclipseLink-40007] (Eclipse Persistence Services - 2.7.7.2-jmix): org.eclipse.persistence.exceptions.StaticWeaveException
Exception Description: An exception was thrown while weaving: [Ljava.lang.String;@6631f5ca
Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.7.7.2-jmix): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [main] failed.
Internal Exception: Exception [EclipseLink-7153] (Eclipse Persistence Services - 2.7.7.2-jmix): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Mapping annotations cannot be applied to fields or properties that have a @Transient specified. [field refreshTs] is in violation of this restriction.
	at org.eclipse.persistence.exceptions.StaticWeaveException.exceptionPerformWeaving(StaticWeaveException.java:140)
	at org.eclipse.persistence.tools.weaving.jpa.StaticWeave.main(StaticWeave.java:88)

In CUBA we had a patch in EclipseLink and com.haulmont.cuba.core.sys.persistence.EclipseLinkCustomizer#initTransientCompatibleAnnotations method on server to make use of it.

Alternative solution: restrict Studio's entity designer to make impossible to create such transient attribute.