added finterp (#37)

Multidimensional Linear Interpolation

Author: jacobwilliams

registry.toml

@@ -9,6 +9,10 @@ latest.git = "https://github.com/dftd4/dftd4"
 "0.1.0" = {git="https://github.com/LKedward/fhash", tag="v0.1.0"}
 "latest" = {git="https://github.com/LKedward/fhash"}
 
+[finterp]
+"1.2.2" = {git="https://github.com/jacobwilliams/finterp", tag="1.2.2"}
+"latest" = {git="https://github.com/jacobwilliams/finterp"}
+
 [iso_varying_string]
 "latest" = {git="https://gitlab.com/everythingfunctional/iso_varying_string"}