feat(*): support user memory watermark

[JulyWindK]

What type of PR is this?

Features/

What this PR does / why we need it:

Implementing a memory watermark for user-space containers effectively prevents memory from becoming too full, which could lead to memory stall. It can also be used to alleviate the JBD hung problem that occurs probabilistically during memory reclamation when container memory is too full and there is a large amount of dirty cache.

Which issue(s) this PR fixes:

Special notes for your reviewer:

[codecov]

Codecov Report

❌ Patch coverage is 50.75862% with 357 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.44%. Comparing base (95c2c56) to head (554661d).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...ns/memory/dynamicpolicy/userwatermark/reclaimer.go	43.25%	182 Missing and 20 partials ⚠️
...gins/memory/dynamicpolicy/userwatermark/manager.go	67.92%	27 Missing and 7 partials ⚠️
pkg/util/cgroup/manager/v1/fs_linux.go	0.00%	30 Missing ⚠️
pkg/util/cgroup/manager/v2/fs_linux.go	0.00%	30 Missing ⚠️
...rwatermarkdefault/user_watermark_default_config.go	51.85%	26 Missing ⚠️
...s/memory/dynamicpolicy/userwatermark/calculator.go	76.19%	9 Missing and 1 partial ⚠️
...tions/dynamic/userwatermark/user_watermark_base.go	50.00%	9 Missing ⚠️
...g/agent/qrm-plugins/memory/dynamicpolicy/policy.go	25.00%	4 Missing and 2 partials ⚠️
pkg/util/cgroup/manager/cgroup.go	0.00%	5 Missing ⚠️
...md/katalyst-agent/app/options/qrm/memory_plugin.go	50.00%	2 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1086      +/-   ##
==========================================
- Coverage   61.46%   61.44%   -0.03%     
==========================================
  Files         783      789       +6     
  Lines       72974    73906     +932     
==========================================
+ Hits        44853    45411     +558     
- Misses      23139    23458     +319     
- Partials     4982     5037      +55     

Flag	Coverage Δ
unittest	61.44% <50.75%> (-0.03%)	⬇️

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