Playwright Port Performance Tests

[terryzfeng]

Porting Performance Tests from https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/perf_tests/webaudio/
to Web Audio Test Suite

• Gain Test
• Panner Test
• Timeline Insert Event
• Audio Buffer Source Node
• Audio Worklet Node
• Biquad FIlter Node
• Dynamics Compressor Node Knee
• Dynamics Compressor Node Post Knee
• Dynamics Compressor Node Pre Knee

[Kizjkre]

Small changes

[hoch]

Generally looks great! Hope we can tidy this further.

[hoch]

Some directional comments:

• If the comment explains "what's being done", probably it's better to revise the code so it is more readable and remove the comment.
• Anything empirical/arbitrary (e.g. accuracy number) should have a comment on why. If it's unclear, we can always "this is arbitrary".
• Assume that someone else will touch the code later. The code that is easier to read is better than the code being cryptic and clever!
• Try to avoid general variable names (e.g. bufferData, float32buffer).

Thanks for your patience, and I think we are almost there!

[hoch]

LGTM with nits

[hoch]

LGTM. Let's get this out!

[hoch]

Thanks for your patience, @terryzfeng and @Kizjkre!