Phase 2 Node properties

n1 = Node.create("age" => 31, "name" => "Max")
n1[:age] #returns 31                                                 # Get a node property using [:key]
n1.name  #returns "Max"                                              # Get a node property as a method
n1[:age] = 24                                                        # Set a node property using [:key] =
n1.name = "Alex"                                                     # Set a node property as a method
n1[:hair] = "black"                                                  # Add a node property using [:key] =
n1.weight = 190                                                      # Add a node property as a method
n1[:name] = nil                                                      # Delete a node property using [:key] = nil
n1.name = nil                                                        # Delete a node property by setting it to nil