Implemented VC caching & deserialization with string[] and cache option.

Change-Id: I42a7d4211d903587254d6b7fc2d6c242e55a2032
diff --git a/src/test/resources/named-vc/named-vc-free.jsonld b/src/test/resources/named-vc/named-vc-free.jsonld
index 4e8cd83..1f90e4c 100644
--- a/src/test/resources/named-vc/named-vc-free.jsonld
+++ b/src/test/resources/named-vc/named-vc-free.jsonld
@@ -2,10 +2,11 @@
     "name" : "cache-goe",
     "@type": "koral:doc",
     "key": "textSigle",
-    "match": "match:eq",
+    "match": "match:ne",
+    "type" : "type:string[]",
     "value": [
         "GOE/AGF/00000",
         "GOE/AGA/01784"
-    ]
-}}
-
+    ],
+    "cache" : "true"
+}}
\ No newline at end of file