Make animation options classes structs (#142)

bump to version 0.4.3 (#141)

Remove layout provider classes (#137)

bump to version 0.4.1 (#136)

add deleteCards methods (#109)

add deleteAtPosition method (#105)

add deleteAtIndex method (#101)

add additional safety checks to insert/append card methods (#94)

add insertCardAtIndex and appendCards methods (#89)

add card:ForIndexAt and position:ForCardAtIndex methods (#87)