Added SumAsync#290

Merged

StefH merged 5 commits intozzzprojects:masterfrom

Aug 24, 2019

Commits on Aug 22, 2019

Added SumAsync
Philipp Kühn
committed
Made SumAsync generic to work with all return types
Philipp Kühn
committed
Made reflected methods static for better performance
Philipp Kühn
committed
Added tests
Philipp Kühn
committed

Commits on Aug 23, 2019

Added Reflection that works on netstandard1.3
Philipp Kühn
committed