refined method/type aliasing
refined back-compatibility
fixed some imports
refined some methods
upgraded to AbstractTensors v0.8.1
upgraded to AbstractTensors v0.8
renamed pseudograde, labeled tensor product
revised various setup definitions
revised grade, antigrade dispatch
implemented antigrade
revised capabilities
upgraded dispatch to AbstractTensors v0.7
general utility improvements
revised some internal dispatch
fixed dispatch of istangent
upgraded to AbstractTensors v0.6
relaxed dispatch constraints
transitioned DirectSum utilities
fixed dispatch bug