ADB log tailing color output

[rmartin16]

Changes

• Inspired by Colorize ADB logcat by default #1572
• Configures ADB to use color-coordinated output

Notes

• I finally took the time to figure out the regex to account for ANSI sequences in the output.
• The regex only handles ANSI sequences at the beginning and end of the output....but that's the only place I've seen it.

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[rmartin16]

In all its glory in CI: https://github.com/beeware/briefcase/actions/runs/8181483777/job/22371536462?pr=1676#step:28:596

One thing I was considering is that there isn't any way to disable this...adb doesn't seem to respect NO_COLOR, at least. It might be possible to inspect if RIch disabled color...and do the same for adb logcat...

[rmartin16]

I went ahead and added support to detect broader color usage so adb log tailing will use color conditionally.

I wanted the tests to actually confirm the assumptions I'm making about Rich...but Rich is evaluating many aspects of the environment to determine if colors should be enabled. Trying to mock all of them to deal with the permutations of environments in which tests can run start to really question if we're testing those assumptions....or just my ability to mock the hell out of Rich. So, I'll have to dumb down the tests to just verify the outcomes of those assumptions are implemented correctly.

[freakboy3742]

It's definitely colourful... :-)

Not much to fault here. I guess we'll learn pretty soon if ANSI sequences appear anywhere in ADB logs other than the start of the line; but we can fix that pretty quickly if we need to.

I'm also not overly concerned about testing how Rich interprets things - at some point, you have to be comfortable that the tools you're using are testing their own behavior, and I think Rich falls in that camp.