Maya: Looks - add all connections

[antirotor]

Bug

If file node was connected not using its "primary data" plug, look collector was ignoring it - for example file node driving only with Alpha Out something down the line was missed by collector.

Fix

This is adding allConnection or ac flag to cmds.listHistory to get even those.

Testing

Create shader with texture using Alpha Out to drive something in the material. Look collector should pick it up correctly.

[LiborBatek]

Everything works fine...

Succesfully published the look with only alpha component connected to the shader and loaded via OP loader for check....