tree checksum vpatch file

all signers: asciilifeform diana_coman

antecedents: udp_fix_ip_nullchars

press order:

udp_genesisasciilifeform diana_coman
udp_errata_asciilifeformasciilifeform diana_coman
udp_fix_ip_nullcharsdiana_coman
mt_prngdiana_coman

hunks:
udp/libmt/lib/README
udp/libmt/mt.adb
udp/libmt/mt.ads
udp/libmt/mt.gpr
udp/libmt/obj/README
udp/libmt/restrict.adc
udp/manifest
udp/testmt/obj/README
udp/testmt/tests_mt.adb
udp/testmt/tests_mt.gpr