v0.1.2

• use github.com/kayrus/tuncfg package to manage tun interfaces
• fixes issues with executable ppp/pppd handling
• speed-up routes management in bsd/win
• fix race condition with ppp handshake and tunnel establishment
• remove github.com/songgao/water dependency, use only golang.zx2c4.com/wireguard
• support native Apple M1 arm64 builds