build: Include idiff in the python wheels we build (AcademySoftwareFoundation#5104)

Fixes AcademySoftwareFoundation#5062

This was a suggestion for the sake of helping OpenUSD.

Signed-off-by: Larry Gritz <lg@larrygritz.com>

Author: lgritz

CMakeLists.txt

@@ -261,7 +261,6 @@ endif ()
 # Disable building of certain tools when building Python wheels
 if (SKBUILD)
     set (ENABLE_iconvert OFF)
-    set (ENABLE_idiff OFF)
     set (ENABLE_igrep OFF)
     set (ENABLE_iinfo OFF)
     set (ENABLE_testtex OFF)

pyproject.toml

@@ -42,6 +42,7 @@ Issues = "https://github.com/AcademySoftwareFoundation/OpenImageIO/issues"
 
 [project.scripts]
 # Use the convention below to expose CLI tools as Python scripts.
+idiff = "OpenImageIO:_command_line"
 maketx = "OpenImageIO:_command_line"
 oiiotool = "OpenImageIO:_command_line"