Add spago configuration (#152)

.gitignore

@@ -5,3 +5,5 @@
 /.purs*
 /.psa*
 /.dir-locals.el
+/.spago
+/output

packages.dhall

@@ -0,0 +1,8 @@
+let upstream =
+      https://github.com/purescript/package-sets/releases/download/psc-0.13.6-20200127/packages.dhall sha256:06a623f48c49ea1c7675fdf47f81ddb02ae274558e29f511efae1df99ea92fb8
+
+let overrides = {=}
+
+let additions = {=}
+
+in  upstream // overrides // additions

spago.dhall

@@ -0,0 +1,36 @@
+{ name = "purescript-httpure"
+, dependencies =
+    [ "aff"
+    , "arrays"
+    , "bifunctors"
+    , "console"
+    , "control"
+    , "effect"
+    , "either"
+    , "exceptions"
+    , "foldable-traversable"
+    , "foreign"
+    , "globals"
+    , "lists"
+    , "maybe"
+    , "newtype"
+    , "node-buffer"
+    , "node-child-process"
+    , "node-fs"
+    , "node-fs-aff"
+    , "node-http"
+    , "node-streams"
+    , "nullable"
+    , "options"
+    , "prelude"
+    , "psci-support"
+    , "refs"
+    , "spec"
+    , "strings"
+    , "tuples"
+    , "type-equality"
+    , "unsafe-coerce"
+    ]
+, packages = ./packages.dhall
+, sources = [ "src/**/*.purs", "test/**/*.purs", "docs/**/*.purs" ]
+}