Autodesk: HgiPresent

[erikaharrison-adsk]

Description of Change(s)

⚠️ This is a WIP PR

• Add HgiPresent
  • For now only implement Vulkan presentation for window presentation
  • Metal presentation will come later
• Make HgiInterop an implementation of HgiPresent
• Update HgiInterop to be more consistent about its composition parameters
• Update HdxPresentTask to use HgiPresent instead of HgiInterop
• Update HdxTaskController and UsdImagingGLEngine to support HgiPresent
• Update all clients of UsdImagingGLEngine to default to HgiInterop presentation
• Fix various symbol export issues I came across

Tested with:

• Windows / WIN32 / NVIDIA
• Windows / WIN32 / Lavapipe
• Linux / X11 / Lavapipe
• macOS / Metal / Lavapipe

Link to proposal (if applicable)

• N/A

Fixes Issue(s)

• N/A

Checklist

• I have created this PR based on the dev branch

• I have followed the coding conventions

• I have added unit tests that exercise this functionality (Reference:
  testing guidelines)

• I have verified that all unit tests pass with the proposed changes

• I have submitted a signed Contributor License Agreement (Reference:
  Contributor License Agreement instructions)

[jesschimein]

Filed as internal issue #USD-10700

(This is an automated message. See here for more information.)

[jesschimein]

/AzurePipelines run