Add bifunctor const properties
Add bifunctor const properties

tranhieutt/Swiftz,ikesyo/Swiftz,typelift/swiftz,mpurland/Swiftz,ikesyo/Swiftz,ryanbooker/Swiftz,gaurav1981/Swiftz,typelift/swiftz,CodaFi/swiftz,ikesyo/Swiftz,tranhieutt/Swiftz,gaurav1981/Swiftz,gaurav1981/Swiftz,mpurland/Swiftz,ryanbooker/Swiftz,typelift/swiftz,CodaFi/swiftz,CodaFi/swiftz,mpurland/Swiftz