tree checksum vpatch file

all signers: phf

antecedents: vtools_vpatch_newline

press order:

vtools_genesisphf
vdiff_fixes_newline_gccphf
keccakphf
vdiff_keccakphf
vtools_fixes_bitrate_char_arrayphf
vtools_vpatchphf
vtools_fixes_static_tohexphf
vtools_vpatch_newlinephf
vtools_ksumphf

hunks:
vtools/ksum.gpr
vtools/manifest
vtools/src/ksum.adb