Fixes #36: Add Scrutinizer PHP Code Coverage

Fixed problem with Scrutinizer build

Another attempt to fix Scrutinizer

Added composer instructions and new phpunit referencing

Added inheritance for Scrutinizer

Removed /vendors/ requirement for PHPUnit

Added composer dependency and updated lock

Updated Scrutinizer config to no interaction mode

Added MySQL DB creation to Scrutinizer

Scrapped. MySQL does not work on Scrutinizer