Add setting to remove order tab for non customer contacts

[mecachisenros]

Overview

Adds a new setting to remove/hide the WooCommerce Orders tab for non customer contacts.

Before

The WooCommerce Orders tab shows for all contacts, regardless if they are a customer or not.

After

A new Hide orders tab for non customers is available, if enabled, the WooCommerce Orders tab is hidden/removed for non customer contacts.

[mecachisenros]

FYI @bastienho @veda-consulting