Add colorlog support

[solonovamax]

Description

It would be very nice if support for colorlog could be added, for colorizing log outputs for launch files.

Motivation

Makes logs look nicer & easier to skim over

Design / Implementation Considerations

Should be relatively easy to implement, just check if RCUTILS_COLORIZED_OUTPUT is set to 1 (maybe add another variable?) or the process is detected to be running in a tty, and then replace the Formatter with a ColoredFormatter:

launch/launch/launch/logging/__init__.py

Lines 320 to 322 in 57c1aee

	self.file_formatter = logging.Formatter(
	log_format, style=log_style
	)

Additional Information

No response