Add RFC references to EppResource Javadoc

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=136747145

java/google/registry/model/EppResource.java

@@ -37,7 +37,7 @@ import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlTransient;
 import org.joda.time.DateTime;
 
-/** An Epp entity object such as a contact or a host. */
+/** An EPP entity object (i.e. a domain, application, contact, or host). */
 @XmlTransient
 public abstract class EppResource extends BackupGroupRoot implements Buildable, ResponseData {
 
@@ -45,6 +45,7 @@ public abstract class EppResource extends BackupGroupRoot implements Buildable,
    * Unique identifier in the registry for this resource.
    *
    * <p>This is in the (\w|_){1,80}-\w{1,8} format specified by RFC 5730 for roidType.
+   * @see <a href="https://tools.ietf.org/html/rfc5730">RFC 5730</a>
    */
   @Id
   @XmlElement(name = "roid")

java/google/registry/model/contact/ContactResource.java

@@ -40,7 +40,11 @@ import javax.xml.bind.annotation.adapters.CollapsedStringAdapter;
 import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
 import org.joda.time.DateTime;
 
-/** A persistable Contact resource including mutable and non-mutable fields. */
+/**
+ * A persistable contact resource including mutable and non-mutable fields.
+ *
+ * @see <a href="https://tools.ietf.org/html/rfc5733">RFC 5733</a>
+ */
 @XmlRootElement(name = "infData")
 @XmlType(propOrder = {
     "contactId",

java/google/registry/model/domain/DomainResource.java

@@ -50,7 +50,11 @@ import javax.xml.bind.annotation.XmlType;
 import org.joda.time.DateTime;
 import org.joda.time.Interval;
 
-/** A persistable domain resource including mutable and non-mutable fields. */
+/**
+ * A persistable domain resource including mutable and non-mutable fields.
+ *
+ * @see <a href="https://tools.ietf.org/html/rfc5731">RFC 5731</a>
+ */
 @XmlRootElement(name = "infData")
 @XmlType(propOrder = {
     "fullyQualifiedDomainName",

java/google/registry/model/host/HostResource.java

@@ -50,6 +50,8 @@ import org.joda.time.DateTime;
  *
  * <p>A host's {@link TransferData} is stored on the superordinate domain.  Non-subordinate hosts
  * don't carry a full set of TransferData; all they have is lastTransferTime.
+ *
+ * @see <a href="https://tools.ietf.org/html/rfc5732">RFC 5732</a>
  */
 @XmlRootElement(name = "infData")
 @XmlType(propOrder = {