Daniel Charon tells intimate stories through his choreography, which is known for effortless lifts, poetic subtlety, and full-throttle body emoting. At tonight’s “Two: two dancers, two duets, two solos , ’’ Charon partners with Natalie Desch in “Snapshots of a Past,’’ “Rush,’’ and “To and From — Next to Me.’’ The latter draws from an artist’s life on the road ...