Vitest: Add support for property testing

[jessekelly881]

What is the problem this feature would solve?

Adding property testing with schema and effect would be a nice addition. Similar to:
https://www.npmjs.com/package/@fast-check/vitest

What is the feature you are proposing to solve the problem?

import { Schema } from "@effect/schema";
import { it } from "@effect/vitest";
import { Effect } from "effect";

it.prop(Schema.Number, Schema.Number).sync("", (a: number, b: number) => {
    return a + b === b + a
})

it.prop(Schema.Number, Schema.Number).effect("", (a: number, b: number) => Effect.gen(function* () {
    return a + b === b + a; 
}))

What alternatives have you considered?

No response

[jessekelly881]

I'll create a PR.