Add onion service nodes by default

[Kreyren]

These pass the self-check in menorujo. Proposing them to be added by default

ip4zpbps7unk6xhlanqtw24f75akfbl3upeckfjqjks7ftfnk4i73oid.onion:18081
xmrrpcmyrz3imrldcwiqt4vm5asq2vefgzybamxdigx37p3ctfcjnsad.onion:18089
xniay6pqr6zdx4o5xldash3emtuvyw7u4vdsylpru4jm5udfp5kgkzid.onion:18089

Sources:

• https://monero.fail/?onion=true
• https://xmrguide.org/remote_nodes

[m2049r]

fixed in #796