More detailed validation error message

[MiaInturi]

Current validation error message looks like this

Validation Error: configuration.rest.configs[0].routes[0].entities.body.hello.value does not match the API schema. Click here to see correct type: https://github.com/siberiacancode/mock-config-server

This message provide info only about error location, but not about error reason. Need to provide info about reason too. Something like this

Validation Error: configuration.rest.configs[0].routes[0].entities.body.hello.value does not match the API schema - value not provided/should be RegExp. Click here to see correct type: https://github.com/siberiacancode/mock-config-server