Version 1.2.0

Changes:

• Adds space inline property to deques to indicate the amount of space available between the current size and the allocated capacity.
• Adds pushTail(*Deque) method to each deque allowing bulk adding from another deque of the same type
• Adds slice(Int, Int): *Deque method to each deque allowing callers to slice a segment of the deque into a new separate deque of the same type
• Adds slice(IntRange): *Deque method to each deque allowing callers to slice a segment of the deque into a new separate deque of the same type
• Adds sliceToArray(Int, Int): *Array method to each deque allowing callers to slice a segment of the deque into a new array of the same primitive type
• Adds sliceToArray(IntRange): *Array method to each deque allowing callers to slice a segment of the deque into a new array of the same primitive type
• Adds hashCode() implementation'
• Adds popFloat and popDouble mixins to UByteDeque and ByteDeque
• Adds stringValue mixin to CharDeque
• Adds integral pop mixins to UByteDeque mirroring those added to ByteDeque in v1.1.0