Add RFC 5322 to email attribute references

dictionary.json

@@ -789,6 +789,7 @@
     "cc": {
       "caption": "Cc",
       "description": "The email header Cc values, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "type": "email_t",
       "is_array": true
     },
@@ -2170,6 +2171,7 @@
     "from": {
       "caption": "From",
       "description": "The email header From values, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "type": "email_t"
     },
     "full_name": {
@@ -3086,6 +3088,7 @@
     "message_uid": {
       "caption": "Message UID",
       "description": "The email header Message-ID value, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "type": "string_t"
     },
     "metadata": {
@@ -3948,6 +3951,7 @@
     "reply_to": {
       "caption": "Reply To",
       "description": "The email header Reply-To values, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "type": "email_t"
     },
     "reputation": {
@@ -4877,6 +4881,7 @@
     "to": {
       "caption": "To",
       "description": "The email header To values, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "type": "email_t",
       "is_array": true
     },

objects/email.json

@@ -46,6 +46,7 @@
     "subject": {
       "caption": "Subject",
       "description": "The email header Subject value, as defined by RFC 5322.",
+      "references": [{"url": "https://www.rfc-editor.org/rfc/rfc5322", "description": "RFC 5322"}],
       "requirement": "recommended"
     },
     "to": {