Support for self signed certificates

ROOT CERTIFICATE

On October 28, 2020, the KVK started signing the SSL connection with a self signed certificate from the dutch government.
To prevent this package from breaking current implementations; SSL verification will be disabled by default.
If you would like to enable the verification of the SSL certificates you can implement the path to the certificate (included) as the 3rd parameter of the KvkClientFactory.
When failing to do so a deprecation error wil be triggered (E_USER_DEPRECATED).

Correctly handle error messages from the API

v0.1.2

Handle API errors

Create interfaces for client, so it can be mocked

v0.1.1

Introduced interfaces for KvkClient and depending on QueryInterface i…

Inital stable release

v0.1

Fixes #14: not found when KvK number starts with 0