Re-implemented wc_PKCS12_PBKDF() to not use MP. Added tests to
unit.test.
sp_int.c:
Fixes to comments.
Added more define build options documentation to top of file.
Fixes for builds with WOLFSSL_SP_INT_NEGATIVE defined.
Fixes for when a->used is 0 and no underflow - not actually a problem
but cleaner code.
sp_sub has different checks on a->used when values are only positive.
sp_dic_2d missing check for e less than zero.
sp_to_unsigned_bin_len_ct: remove redundant check of outSz. Change i
to int to handle a->used of 0 and make code tidier.
Configuration testing fixes.
Fix formatting in test.c.
Added 128-bit types word128 and sword128 for cleaner PKCS#12 code.
Mattia Moffa
Eric Blankenhorn
Sean Parkinson
JacobBarthelmeh
Andrew Hutchings