Update sample project

Author: Nurkambay

clients/sample-dialect-support/sample-dialect-vscode/.cobolplugin/pgm_conf.json

@@ -1,5 +1,5 @@
 {
     "pgms": [
-        { "program": "./*", "pgroup": "SAMPLE"}
+        { "program": "*", "pgroup": "SAMPLE"}
     ]
 }

clients/sample-dialect-support/sample-dialect-vscode/.cobolplugin/proc_grps.json

@@ -2,9 +2,12 @@
     "pgroups": [
         {
             "name": "SAMPLE",
-            "libs": [
-                "copybook"
-            ]
+            "preprocessor": [{
+                "name": "SAMPLE",
+                    "libs": [
+                        "copybook"
+                    ]
+            }]
         }
     ]
 }