switch numlock capslock and scrolllock on/off for windows

• file name contains num such as numlock affects Num Lock status
• file name contains caps or capital such as capslock affects Caps Lock status
• file name contains scrl or scroll such as scroll-lock affects Scroll Lock status

• run directly without any argument (for example simply double-click it) toggles status affected by file name on
• run with any argument toggles status affected by file name off

• change file name to numlock.exe and double-click it turns Num Lock on
• change file name to numlock.exe and run it as numlock 1 in a shell turns Num Lock off
• change file name to capslock.exe and double-click it turns Caps Lock on

Releases are built with tcc using tcc numlock.c, it can also be built with other compliers such as gcc.