CompatHelper: add new compat entry for Interpolations at version 0.15, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -19,11 +19,12 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
+BenchmarkTools = "1"
+Colors = "0.13"
 ControlPlots = "0.2.5"
+DelimitedFiles = "1"
+Interpolations = "0.15"
+LaTeXStrings = "1"
 Measures = "0.3"
 StaticArrays = "1"
 Statistics = "1"
-DelimitedFiles = "1"
-BenchmarkTools = "1"
-LaTeXStrings = "1"
-Colors = "0.13"