slabtop: Add command

[Krysztal112233]

fixes #31

[cakebaker]

Just a hint: instead of using "link to x" you can use one of Github's keywords like "fixes x" to link a PR to an issue.

[Krysztal112233]

Need to introduce the ratatui crate to implement the TUI, so mark pr as draft for the time being

[codecov]

Codecov Report

Attention: Patch coverage is 22.66667% with 232 lines in your changes are missing coverage. Please review.

Project coverage is 45.99%. Comparing base (0a85e96) to head (dfb9fa0).
Report is 9 commits behind head on main.

❗ Current head dfb9fa0 differs from pull request most recent head c4eaca7. Consider uploading reports for the commit c4eaca7 to get more accurate results

Files	Patch %	Lines
src/uu/slabtop/src/parse.rs	15.27%	170 Missing and 2 partials ⚠️
src/uu/slabtop/src/slabtop.rs	11.11%	52 Missing and 4 partials ⚠️
tests/by-util/test_slabtop.rs	93.54%	0 Missing and 2 partials ⚠️
src/uu/w/src/w.rs	0.00%	1 Missing ⚠️
tests/by-util/test_w.rs	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #42      +/-   ##
==========================================
- Coverage   48.37%   45.99%   -2.38%     
==========================================
  Files          15       18       +3     
  Lines        1933     2187     +254     
  Branches      277      305      +28     
==========================================
+ Hits          935     1006      +71     
- Misses        839     1017     +178     
- Partials      159      164       +5     

Flag	Coverage Δ
macos_latest	45.11% <22.66%> (-2.59%)	⬇️
ubuntu_latest	45.27% <22.33%> (-3.61%)	⬇️
windows_latest	0.10% <0.00%> (-0.03%)	⬇️

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[sylvestre]

@Krysztal112233 is that still a draft?

[Krysztal112233]

@Krysztal112233 is that still a draft?

I have a branch that implements simple output, but does not implement the TUI

Implementing a TUI was a lot more trouble than I thought it would be

[sylvestre]

sorry, there is now a small conflict, could you please fix it? should be easy

[Krysztal112233]

sorry, there is now a small conflict, could you please fix it? should be easy

the conflict has been fixed

[Krysztal112233]

@sylvestre this pr almost complete, can you have a look about it?

[sylvestre]

terrific!