add optional parameter to serializer, deserializer to convert between snake-case and camelCase

[loyada]

class Foo(Structure):
first_name= String
year_born = Integer

foo = Foo(first_name="jon", year_born=1999)
serialized = Serializer(foo, camelCaseConvert = True).serialize(foo)
assert serialized == {firstName: 'jon', yearBorn: 1999}

res = Deserializer(Foo, camelCaseConvert = True).deserializer(serialized)
assert res==foo