feat: add enhanced sysinfo.py

[rlaace423]

I created enhanced sysinfo.py (sys_info2.py) like below.
New design, and source code refinement.

Also, every 4 seconds UpTime and Ip toggled automatically.

If CPU or Mem or Disk reach 100%, it shows more clearly.

Tested on

• Display: ssd1306
• Interface: i2c
• Dimensions: 128 x 64
  (GeeekPi Raspberry PI NAS mini tower Kit)

fixes #159

[thijstriemstra]

thanks! See inline comments.

[rlaace423]

No problem, I'll check it out after work, takes about 9 hours later (I'm here in South Korea).

[rlaace423]

@thijstriemstra

• improved get_mem()
  • psutil.virtual_memory().percent is much more accurate and cross-platform friendly
• improved get_ip()
  • Now it finds the most suitable IPv4 address among the network interfaces. Also, you can specify network interface name what you want to see. (network_interface_name)
    • order by up/down status, duplex mode
    • exclude loopback address
• get_disk() -> get_disk_usage()

[rlaace423]

@thijstriemstra any updates?

[thijstriemstra]

@thijstriemstra any updates?

I just got back from holidays, let me take a look.

[thijstriemstra]

• the qa task if failing due to some lint errors, run tox -e qa locally and/or see https://github.com/rm-hull/luma.examples/actions/runs/6017087533/job/16684187858?pr=163#step:8:24 for these errors.
• can you add a docstring to the example with a description of the enhancements you made?
• At first I thought this new code could replace the existing sys_info.py but not sure, maybe it's better separate like this, thoughts @rm-hull?
• the filename is not very descriptive, maybe it could be called sys_info_extended.py or something like that.
• the new example needs to be added to the README.md
• add your name to CONTRIBUTING.rst

[rlaace423]

I've made some edits. I'm not a Python guy, so I'm not sure if I did it correctly.

[thijstriemstra]

thanks!