fix neo4jerror name issue

Author: praveenag

src/v1/error.js

@@ -44,6 +44,7 @@ class Neo4jError extends Error {
     super( message );
     this.message = message;
     this.code = code;
+    this.name = "Neo4jError"
   }
 }
 

test/internal/connector.test.js

@@ -233,6 +233,7 @@ describe('connector', () => {
     expect(() => {
       throw error;
     }).toThrow(new Neo4jError(expectedMessage, expectedCode));
+    expect(error.name).toBe("Neo4jError");
   }
 
   function basicAuthToken() {