refined import alias
fixed minor import issue
fixed minor dispatch bug
fixed bug with One(V)
refied conjugation design
extended Signature syntax
fixed rare dispatch bug
upgraded syntax definitions
improved more dispatch cases
made signature utilities robust
upgraded to AbstractTensors v0.8
corrected minor bugs
refined metric, antimetric, complements, etc
implemented antigrade, antireverse, etc
defined Infinity element
revised type references
fixed getsparse Int64 error
deprecated Simplex for Single
upgraded to AbstractTensors v0.7 style
resolved various dispatch issues