Fixes SYNDisplay property regression

[williamwira]

Linked issues

Fixes #1034

Summarize your change.

Updated initialization step in OCIOIPNode used by SYNDisplay, so outTransform.url would be checked.

Describe the reason for the change.

Regression caused SYNDisplay outTransform.url property to be ignored, so we could not set the display colorspace with an icc filepath.

Describe what you have tested and on which operating system.

Confirmed this update worked on Linux RHEL 9.6. Executed this python code on a single-monitor system to validate the change. The code switches the display group's color pipeline node to a SYNDisplay node, and then assigns an icc profile file to the node's outTransform.url property.

icc_file = '<path-to>/colorspace.icc'
commands.setStringProperty("displayGroup0_colorPipeline.pipeline.nodes", ["SYNDisplay"])
syn_display_node = commands.nodesOfType("SYNDisplay")[0]
commands.setStringProperty(f"{syn_display_node}.outTransform.url", [icc_file])