Setup launch agents (useful for automating brew installs and their startup script)

setup_launch_agents.sh

# Set Up Launch Agent to Run On Startup
function set_launch_agent() {
  # retrieve the dependency's prefix
  DEP_PREFIX=$(brew --prefix ${1})
  # make the user local LaunchAgents directory (skip if already exists)
  mkdir -p ~/Library/LaunchAgents
  # copy brew generated plist to LaunchAgent
  cp $DEP_PREFIX/*${1}*.plist ~/Library/LaunchAgents/
  # load the agent now
  launchctl load -w ~/Library/LaunchAgents/*${1}*.plist
}