Zeal docs

CI scripts to generate Dash-compatible documentation that can be used in Zeal.

Scapy: https://mark22k.codeberg.page/zeal-docs/@scapy/Scapy.xml
VyOS: https://mark22k.codeberg.page/zeal-docs/@vyos/VyOS.xml
fastd: https://mark22k.codeberg.page/zeal-docs/@fastd/fastd.xml
Unbound: https://mark22k.codeberg.page/zeal-docs/@unbound/Unbound.xml
FRR: https://mark22k.codeberg.page/zeal-docs/@frr/FRR.xml
OpenVPN man pages: https://mark22k.codeberg.page/zeal-docs/@openvpn/OpenVPN.xml
bird: https://mark22k.codeberg.page/zeal-docs/@bird/bird.xml
stunnel man pages: https://mark22k.codeberg.page/zeal-docs/@stunnel/stunnel.xml
babeld man pages: https://mark22k.codeberg.page/zeal-docs/@babeld/babeld.xml
socat man pages: https://mark22k.codeberg.page/zeal-docs/@socat/socat.xml
xca: https://mark22k.codeberg.page/zeal-docs/@xca/xca.xml
fping: https://mark22k.codeberg.page/zeal-docs/@fping/fping.xml