Include UID for emitted form validation events

[patcarter883]

Added a UID to from validation events to allow tracking validation of forms inside of a vue template loop.

[zoul0813]

_uid is not a public property exposed by Vue, we can not rely on it.

[zoul0813]

It looks like you're relying on the internal _uid from the Vue component, this property is undocumented and meant for internal use by Vue. If you'd like to implement something like this, then I'd recommend you introduce a stable property and initialize it with a value we can rely on.

[zoul0813]

Maybe it would make more sense if we returned the VFG instance in the validated event instead of a UID or tracking number. This would allow developers to have access to the entire VFG instance ....

Something like this?

this.$emit('validated', isValid, this.errors, this);

Devs could then use the internal _uid property, or add additional attributes to the VFG tag ... such as :id="someGeneratedId and then access that, they'd also have access to the model and schema in the VFG instance to respond to validated events properly.

[patcarter883]

Sounds like a plan. Done!!