Simplify ImageManagerLoader implementation (use ImageLoadState enum instead of ImageSessionTask class)
Simplify ImageManagerLoader implementation (use ImageLoadState enum instead of ImageSessionTask class)

gaurav1981/Nuke,MaddTheSane/Nuke,MaddTheSane/Nuke,kean/Nuke,gaurav1981/Nuke,RuiAAPeres/Nuke,kean/Nuke,RuiAAPeres/Nuke,MaddTheSane/Nuke,RuiAAPeres/Nuke