Automatically generate all possible PSASIM files

[valeriosetti]

Suggested enhancement

PSASIM has some files which are automatically generated from a couple of Perl scripts:

• psa_sim_serialise.[c|h] -> generated from psa_sim_serialise.pl
• psa_sim_crypto_[client|server].c and psa_functions_codes.h -> generated from psa_sim_generate.pl

Despite being automatically generated, they are also tracked by git, which does not make much sense. The goal of this issue is to stop tracking C/H files and to always automatically generate them when necessary for test purposes.

Justification

Mbed TLS needs this to make PSASIM testing more automatic.