Changelog for free-category

Version 0.0.3.0

• Efficient 'Cat' and 'Aff' based on real time queues with scheduling
• Added Monoid instances
• Added Op category
• added arrArr, mapArr, foldArr for Arr free arrow category
• added arrCat, mapCat, fodlMap for Cat free categroy

Version 0.0.2.0

• EffCategory class and FreeEffCat category transformer
• Example usage of FreeEffCat

Version 0.0.1.0

• free category (concrete and condensity transformed)
• free arrows (concrete and condensity transformed)

Unreleased changes