Add DataStructures

Author: odow

Project.toml

@@ -6,6 +6,7 @@ version = "1.2.0"
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
 CodecBzip2 = "523fee87-0ab8-5b00-afb7-3ecf72e48cfd"
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
+DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
@@ -22,6 +23,7 @@ Unicode = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
 BenchmarkTools = "1"
 CodecBzip2 = "~0.6, 0.7"
 CodecZlib = "~0.6, 0.7"
+DataStructures = "0.18"
 ForwardDiff = "0.5, 0.6, 0.7, 0.8, 0.9, 0.10"
 JSON = "~0.21"
 JSONSchema = "1"