Firebird Perl extension DBD-Firebird version 1.25 is released

Perl extension DBD::Firebird version 1.25 is released with a few bigdecimal/numeric related changes :

• Add tests for values between 0 and ±1 to bigdecimal[_read].t
• dbd_st_fetch: fix conversion of numerics between -1 and 0
• Add a variant of t/92_bigdecimal_read.t using numeric(18,10)