Human readable errors

[moshe5745]

I want to output the error that occurs in schema validation to the user.

Right now, we got something like this(from the docs):

	// []jtd.ValidateError{
	// 	jtd.ValidateError{
	// 		InstancePath: []string{},
	// 		SchemaPath: []string{"properties", "name"}
	// 	},
	// 	jtd.ValidateError{
	// 		InstancePath: []string{"age"},
	// 		SchemaPath: []string{"properties", "age", "type"}
	// 	},
	// 	jtd.ValidateError{
	// 		InstancePath: []string{"phones", "1"},
	// 		SchemaPath: []string{"properties", "phones", "elements", "type"}
	// 	}
	// }

It would be nice to get an output like:

• property "name" is missing
• property "age" expected string found int

I could try to make my own output string but I am afraid I don't have all the data I need. Like the expected type and the one found in the json.