impl session tokens

Package.resolved

@@ -1,5 +1,5 @@
 {
-  "originHash" : "d53dfe2770a8b5d4063e71737e72637f59cec754bf4553178a66d10f39bfb1ee",
+  "originHash" : "01eb28d6d5d4bfc205f7c8b2f8a3dc3a3d278b26c75f239cbd1cf26e4482e33d",
   "pins" : [
     {
       "identity" : "async-http-client",
@@ -55,6 +55,24 @@
         "version" : "4.8.1"
       }
     },
+    {
+      "identity" : "jwt",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/vapor/jwt.git",
+      "state" : {
+        "revision" : "af1c59762d70d1065ddbc0d7902ea9b3dacd1a26",
+        "version" : "5.1.2"
+      }
+    },
+    {
+      "identity" : "jwt-kit",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/vapor/jwt-kit.git",
+      "state" : {
+        "revision" : "03f5013f0b547ce43abe45e7e90711303a3e5495",
+        "version" : "5.1.2"
+      }
+    },
     {
       "identity" : "multipart-kit",
       "kind" : "remoteSourceControl",
@@ -127,6 +145,15 @@
         "version" : "1.2.0"
       }
     },
+    {
+      "identity" : "swift-certificates",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-certificates.git",
+      "state" : {
+        "revision" : "999fd70c7803da89f3904d635a6815a2a7cd7585",
+        "version" : "1.10.0"
+      }
+    },
     {
       "identity" : "swift-collections",
       "kind" : "remoteSourceControl",