Type declarations and Generics

Hi,

We'll be working on these feature in the 1.7.x branch:

• Add Argument Type Declarations [BC] Change method signature
• Add Return Type Declarations [BC] Change method signature
• Add declare(strict_types=1);
• Add Generics via DocBlocks

You're can test the 1.7.x branch using composer require mockery/mockery:1.7.x-dev --dev

Thanks for your patience.