Implement and test parallel and non-parallel tensor shape inference

[reyna-abhyankar]

Description of changes:

Implement and test parallel and non-parallel tensor output shape inference for all operators in op-attrs.

Related Issues:

Issues closed by this PR:

• Closes Implement and unit test non-parallel tensor shape inference and all other associated functions for Aggregate #927
• Closes Implement and unit test parallel tensor shape inference for Aggregate #949
• Closes Implement and unit test non-parallel tensor shape inference for the remaining operators #928
• Closes Implement and unit test parallel tensor shape inference for the all operators #950

TODO:

• rc for some parameters

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This change is 

[lockshaw]

@lambda7xx ^^ related to the stuff you're doing

[reyna-abhyankar]

Move to #1183