StringsTableTest
----------------

A _fixed-string_ is a compile time string which is
stored in the read only section of the executable
and is available as an int. The mapping is fixed
at compile time. The retrieval of the static string
that the id maps to is thread safe.

This test shows how this can be integrated with
cmake to be able to at compile time find all the
strings and place them in the strings table.

This could be useful for a fixed size union that
contains various types as well as string ids which
refer to fixed strings.