php-http-client is another project and needs sub-package name #1018

php-http-client is at 3.13.0 version currently and as is a different project with it's own versioning I think the next is confusing:

use SendGrid\Client;

which implies a direct relation with the current library.

I think a better solution is to create a sub-namespace like:

use SendGrid\Http\Client;

that makes psr4 autoloading much easier as now you can point the package loader to any folder you like and put there the project's files:

http-client
     |_ Exception
     |         |_ InvalidRequest.php
     |_ Client.php
     |_ Response.php

I experiment this now in a sub-folder using my own autoloading function.