MINOR: stick-table: make skttable_data_cast to use only std types

MINOR: stick-table: make skttable_data_cast to use only std types

This patch replaces all advanced data type aliases on
stktable_data_cast calls by standard types.

This way we could call the same stktable_data_cast
regardless of the used advanced data type as long they
are using the same std type.

It also removes all the advanced data type aliases.