Generates basic p2p node and client configs with private and public keys.
You need to define env vars.
Also loads .env files.
Env vars:
WGG_SUBNET=10.20.30.0/24
WGG_NODE1=<node1-ip>:55333
WGG_NODE2=<node2-ip>:55333
WGG_NODE3=<node3-ip>:55333
WGG_CLIENT_COUNT=5
WGG_OUT_DIR=wgout