Refaktorz & Teztz

Changed

• Updated concurrency multipliers to exclude ConcurrencyOption.Default.
• Refactored SharedMap.#isNull().
• The taskHandler used within Service to avoid unnecessary looping. Minor performance improvement.
• ServiceCluster.use() implementation to be more logical and performant.
• Minor refactors for define().
• Minor refactors for Pool.

Added

• Extra test for autoRenew option on ServiceCluster.
• Tests for __beforeTask and __afterTask hooks with services & task workers.

Fixed

• Incorrect timeout error for creating writable streams.
• ParentThread in-editor docs.