Add AES-OCB to cryptography registry (#885)

Adds AES-OCB to the cryptography registry under the AES family.

Details:
- Primitive: `ae`
- Pattern: `AES[-(128|192|256)]-OCB[-{tagLength}]`
- Standard: RFC 7253



Fixes #884

Author: stevespringett

schema/cryptography-defs.json

@@ -405,6 +405,16 @@
           "pattern": "AES[-(128|192|256)]-GCM-SIV[-{tagLength}][-{ivLength}]",
           "primitive": "ae"
         },
+        {
+          "standard": [
+            {
+              "name": "RFC7253",
+              "url": "https://doi.org/10.17487/RFC7253"
+            }
+          ],
+          "pattern": "AES[-(128|192|256)]-OCB[-{tagLength}]",
+          "primitive": "ae"
+        },
         {
           "standard": [
             {