Add schema validation to parameter validation

### What is the problem / feature ?

Parameter validation did not look at `items` or `schema` for validation.

### How did it get fixed / implemented ?

Added validation for both

### How can someone test / see it ?

Do some parameter validation on them.

*Here is a cute animal picture for your troubles...*

![Uploading Brown bear (female) and its children play with a ball in Kamchatka Peninsula, Russia.jpeg . . .]()