Update to 1.0.20200510
ipc: add support for openbsd kernel implementation
ipc: cleanup openbsd support
wg-quick: add support for openbsd kernel implementation
wg-quick: cleanup openbsd support
wg-quick: support dns search domains
Makefile: simplify silent cleaning
ipc: remove extra space
git: add gitattributes so tarball doesn't have gitignore files
terminal: specialize color_mode to stdout only
wg-quick: android: support application whitelist
systemd: add wg-quick.target