Added opam package definition

.gitignore

@@ -2,5 +2,4 @@
 _build
 .merlin
 *.install
-qcaml.opam
 #*#

qcaml.opam

@@ -0,0 +1,27 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+  ["dune" "build" "-p" name "@doc"] {with-doc}
+]
+maintainer: ["Anthony Scemama <scemama@irsamc.ups-tlse.fr>"]
+authors: ["Anthony Scemama <scemama@irsamc.ups-tlse.fr>"]
+bug-reports: "https://gitlab.com/scemama/qcaml/issues"
+homepage: "https://gitlab.com/scemama/qcaml"
+doc: "https://gitlab.com/scemama/qcaml"
+license: "LGPL-2.1+ with OCaml linking exception"
+dev-repo: "git+https://gitlab.com/scemama/qcaml.git"
+synopsis: "QCaml - Quantum chemistry with OCaml"
+description: """
+QCaml provides a programming framewrok work wave function methods
+in quantum chemistry."""
+depends: [
+  "ocaml" {>= "4.10"}
+  "dune" {>= "1.10"}
+  "lacaml"
+  "getopt"
+  "zarith"
+  "alcotest"
+]