v128.0 beta9 Release

Since m127:

• Vulkan symbols are renamed to skgpu::* . We use the older GrVk* forms,
  but also alias them to skgpu.Vulkan* , under the skia.skgpu namespace
  (i.e. similar to upstream's skgpu::, with python syntax), so that both
  m87-like and current continue to work.

Since m126:

• CentOS 7 EOL on 1 Jul 2024: small update to how we build the packages; We now more explicitly
  build for mac os 10.13+ in Skia.

• Adding references and code snipplets to OpenGL settings for Apple users. fixes #214

• GrVkExtensionFlags & GrVkFeatureFlags removed upsteam.

• Some redirections/aliases are added to allow newly written python codes to look like
  their current C counterparts (in addition to supporting a m87-like API).
  We also added some direct calls to currently APIs which were accessible
  only via m87-like emulations. Re-enabled a few parameterized tests removed
  during the m87->m116 transition.

What's Changed

• Improve "convert to PIL" example by @lucach in #250
• M128 public by @HinTak in #253
• Adding references and code snipplets to OpenGL settings for Apple users by @HinTak in #249
• M127 public by @HinTak in #251

Full Changelog: v126.0b8...v128.0b9