PHP 7.2 support

[nicolasmure]

Hello :)

PHP 7.2 as introduced the object typehint, so it became a reserved keyword an can no longer be used as a class name (see exemple https://3v4l.org/XmtsZ ).

Do you have any plans to rename the OpenStack\ObjectStore\v1\Models\Object class ?

Thank you :)

[nicolasmure]

Oh, I haven't noticed the open PRs for this issue, #184 seems to be the most advanced fix at the moment.

[haphan]

#184 will fix the issue with 7.2