feat: add alias name for some extensions

[susiwen8]

Please check if the PR fulfills these requirements

• [ ] The commit message follows our guidelines
• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

https://registry.khronos.org/webgl/extensions/WEBGL_depth_texture/ https://developer.mozilla.org/en-US/docs/Web/API/EXT_texture_filter_anisotropic https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_compressed_texture_s3tc

What is the current behavior? (You can also link to an open issue here)

What is the new behavior (if this is a feature change)?

Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

Other information:

[zhuxudong]

Is this issue has a bug found in any browser?

• As far as we know, plug-ins starting with manufacturer prefixes such as _moz and _webkit are generally used for early experiments and testing(since 2013 year). As the times progress, we should only support official plug-ins such as EXT_ and KHR_.
• In addition, the above plug-ins have been fully supported and tested pass，such as or some documents：
  • https://bugzilla.mozilla.org/show_bug.cgi?id=913597
  • https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/Using_Extensions#canonical_extension_names_vendor_prefixes_and_preferences
  • https://khronos.org/pipermail/public_webgl_khronos.org/2013-October/007349.html