Added decoder for chunked HTTP encoding

This decoder will join up a HTTP response sent using chunked transfer encoding, raised in issue #168.

This is useful when attempting to extract files or gzipped responses sent using chunked transfer encoding, particularly when combined with the gunzip operation.

src/core/config/Categories.json

@@ -137,6 +137,7 @@
         "ops": [
             "HTTP request",
             "Strip HTTP headers",
+            "Dechunk HTTP response",
             "Parse User Agent",
             "Parse IP range",
             "Parse IPv6 address",

src/core/config/scripts/portOperation.mjs

@@ -2239,6 +2239,13 @@ const OP_CONFIG = {
         outputType: "string",
         args: []
     },
+    "Dechunk HTTP response": {
+        module: "HTTP",
+        description: "Parses a HTTP response transferred using transfer-encoding:chunked",
+        inputType: "string",
+        outputType: "string",
+        args: []
+    },
     "Parse User Agent": {
         module: "HTTP",
         description: "Attempts to identify and categorise information contained in a user-agent string.",