add ethkey & parity-evm todarwin pkg

+new ststus icons
mac/Parity Ethereum.xcodeproj/project.pbxproj
mac/Parity/AppDelegate.swift
mac/Parity/Assets.xcassets/statusIcon.imageset/Parity-1.png
mac/Parity/Assets.xcassets/statusIcon.imageset/Parity-2.png
mac/Parity/Assets.xcassets/statusIcon.imageset/Parity.png
mac/Parity/GetBSDProcessList.swift
mac/install-readme.txt
mac/uninstall-parity.sh
scripts/gitlab-build.sh