add esy config

Author: rauanmayemir

.gitignore

@@ -1,3 +1,4 @@
 _build
 *.install
 *.merlin
+node_modules

dune

@@ -0,0 +1 @@
+(ignored_subdirs (node_modules))

esy.lock.json

@@ -0,0 +1,28 @@
+{
+  "name": "hacl",
+  "version": "0.0.1",
+  "description": "OCaml bindings to hacl-star generated C code (https://github.com/mitls/hacl-star)",
+  "repository": "https://github.com/mengerhq/ocaml-hacl",
+  "esy": {
+    "build": [["dune", "build"]]
+  },
+  "scripts": {
+    "clean": "dune clean",
+    "test": "dune runtest"
+  },
+  "dependencies": {
+    "@opam/bigstring": ">=0.2",
+    "@opam/dune": "^1.3.0",
+    "@opam/ocplib-endian": ">=1.0",
+    "@opam/zarith": ">=1.7"
+  },
+  "peerDependencies": {
+    "ocaml": ">=4.2.0"
+  },
+  "devDependencies": {
+    "@esy-ocaml/merlin": "^3.0.5",
+    "@opam/alcotest": "^0.8.3",
+    "@opam/hex": "^1.2.0",
+    "ocaml": "~4.7.2"
+  }
+}