[refactor] rename the imports into bitmask-vpn

README.md

cmd/bitmask-connect/main.go

cmd/bitmask-helper/main.go

cmd/bitmask-vpn/main.go

pkg/bitmask/bitmaskd.go

pkg/bitmask/standalone.go

pkg/bitmaskd/main.go

pkg/helper/darwin.go

pkg/helper/linux.go

pkg/helper/windows.go

pkg/standalone/bonafide.go

pkg/standalone/launcher_linux.go

pkg/standalone/main.go

pkg/systray/config.go

pkg/systray/notificator.go

pkg/systray/pid.go

pkg/systray/run.go

pkg/systray/signal_unix.go

pkg/systray/signal_windows.go

pkg/systray/systray.go