Add owee fork without unix dependency

packages/owee.0.7/opam

@@ -0,0 +1,27 @@
+opam-version: "2.0"
+name: "owee"
+version: "0.7"
+synopsis: "OCaml library to work with DWARF format"
+description: """\
+Owee is an experimental library to work with DWARF format.
+It can parse ELF binaries and interpret DWARF debugline programs.
+
+It can also be used to find locations of functions from the current process."""
+maintainer: "Frédéric Bour <frederic.bour@lakaban.net>"
+authors: "Frédéric Bour <frederic.bour@lakaban.net>"
+license: "MIT"
+homepage: "https://github.com/let-def/owee"
+bug-reports: "https://github.com/let-def/owee"
+depends: [
+  "ocaml" {>= "4.06"}
+  "dune" {>= "2.0"}
+]
+available: arch != "x86_32" & arch != "arm32"
+build: [
+  ["dune" "subst"] {dev}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+dev-repo: "git+https://github.com/let-def/owee.git"
+url {
+  src: "git+https://github.com/robur-coop/owee.git#unix-free"
+}