fix: kronecker multiplication over Fq
fix: bug in modular multiplication over Q(a)
chg: more tests for factorization
chg: update test results
chg: earlier check for divisibility in EZGCD
chg: more tests for gcd
chg: removed/disable dead code
chg: disabled dead code
chg: disabled dead code for factorization
chg: due to removal of old factorization code
chg: disable unused variants of functions
chg: disable some matrix nonsense
chg: remove no more need fac_multivar.h from include
Merge pull request #487 from mmklee/factory_flint24_sw

Factory flint24 sw