Add mongo db driver options

[vainj]

Proposed changes

Adds the possibility to pass the $driverOptionsparameter while building the MongoDB Client.
See related issue: #663

Types of changes

What types of changes does your code introduce to Phpfastcache?

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves an existing code/behavior)
• Deprecated third party dependency update
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation/Typo/Resource update that does not involve any code modification

Agreement

I have read the CONTRIBUTING and CODING GUIDELINE docs

[Geolim4]

What a great PR, looks good, thanks you :)