Manpages of sigsum-go in Debian experimental

• sigsum-key-from-hex(1)
• sigsum-key-from-vkey(1)
• sigsum-key-generate(1)
• sigsum-key-sign(1)
• sigsum-key-to-hash(1)
• sigsum-key-to-hex(1)
• sigsum-key-to-vkey(1)
• sigsum-key-verify(1)
• sigsum-key(1)
• sigsum-monitor(1)
• sigsum-submit(1)
• sigsum-token-create(1)
• sigsum-token-record(1)
• sigsum-token-verify(1)
• sigsum-token(1)
• sigsum-tools(7)
• sigsum-verify(1)
• sigsum-witness(1)