Add blinking support

[hackruu]

Hello, thanks for a nice tool. Can you please add feature of blinking? I want to use scroll lock as indicator. So when look at my keyboard i would see some pattern that would tell me smth is happening. Please add such option. Proposed parameters are

• num of blinks
• delay between blinks or, even better — binary pattern of 1 and 0 and interval between, for example:
• 1 100 0 100 1 50 0 50 — one fast blink, one slower blink i can simulate this if using this tool in while cycle, but it consumes resources.

Thanks in advance!

[damieng]

Making the LEDs blink would be a different type of program - it would need to continue running as a background task/daemon.

Really the purpose of this program was to replicate the functionality of the Linux 'setleds' command on macOS.