Add d2i_PUBKEY_ex_fp and d2i_PUBKEY_ex_bio.

Add d2i_PUBKEY_ex_fp and d2i_PUBKEY_ex_bio.

These functions pass a library content and prop query.
The i2d documentation related to these functions has been corrected since the bio and fp functions always return 0 or 1.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18427)