Add basic hyperbolic functions (#7258)

`math sinh`
`math cosh`
`math tanh`

crates/nu-command/src/default_context.rs

@@ -408,6 +408,9 @@ pub fn create_default_context() -> EngineState {
             MathSin,
             MathCos,
             MathTan,
+            MathSinH,
+            MathCosH,
+            MathTanH,
             MathPi,
             MathEuler,
         };