Add the autogenerated .opam file, to allow users to pin the repository directly from git

Author: andersfugmann

.gitignore

@@ -11,4 +11,3 @@ __pycache__
 
 core
 vgcore.*
-*.opam

README.md

@@ -15,6 +15,11 @@ Run `make docs` to generate documentation. Open
 auto-generated docs online:
 [API](https://calsign.github.io/ocaml-opencv/).
 
+## Pinning the dev repo
+To build and insstall the package directly from the development
+repository, use
+`opam pin add opencv https://github.com/Calsign/ocaml-opencv.git`
+
 ## Goals
 
  - Provide access to the full OpenCV API through OCaml

opencv.opam

@@ -0,0 +1,29 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "OCaml bindings for OpenCV"
+maintainer: ["William Smith"]
+authors: ["William Smith"]
+license: "LGPL-2.1-only"
+homepage: "https://github.com/Calsign/ocaml-opencv"
+bug-reports: "https://github.com/Calsign/ocaml-opencv/issues"
+depends: [
+  "ctypes-foregin"
+  "dune" {>= "2.7" & >= "2.7"}
+  "owl"
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/Calsign/ocaml-opencv.git"