Consolidate Performance Testing Tools and Docs

[danehans]

Several approaches to inference performance testing have been demonstrated. These efforts are greatly appreciated but a consolidated approach to perf testing tools and docs will provide more value to the project and users.

• The inference-perf project
• configurable filter chains #169 is based on llmperf.
• @liu-cong demonsatred an inference perf tool that he is working on during the 2/23/25 community meeting

[danehans]

cc: @Kuromesi

[Kuromesi]

cc: @Kuromesi

Got it, I'll post my perfermance testing document ASAP.

[kfswain]

Definitely agreed here. Will close in favor of: kubernetes-sigs/inference-perf#23