fix(amm): calculation fixes + price type change#7

Merged

jak-pan merged 3 commits intomasterfrom fix/maths

Aug 24, 2020

+230-116

Commits on Aug 19, 2020

fixed calculations in amm pallets: changes price to fixedu128
Martin Hloska
committed

Commits on Aug 21, 2020

fix benchamrking - create pool initial price type change
Martin Hloska
committed

Commits on Aug 24, 2020

Fixed benchmarking
jak-pan
committed