adds the licenses

Author: ivg

packages/piqi/piqi.0.7.8/opam

@@ -2,6 +2,7 @@ opam-version: "2.0"
 synopsis: "Protocol Buffers, JSON and XML serialization system for OCaml"
 authors: "Anton Lavrik <[email protected]>"
 maintainer: "Anton Lavrik <[email protected]>"
+license: "Apache-2.0"
 homepage: "https://github.com/alavrik/piqi-ocaml"
 bug-reports: "https://github.com/alavrik/piqi-ocaml/issues"
 depends: [

packages/piqilib/piqilib.0.6.16/opam

@@ -4,6 +4,7 @@ synopsis:
 authors: "Anton Lavrik <[email protected]>"
 maintainer: "Anton Lavrik <[email protected]>"
 homepage: "http://piqi.org"
+license: "Apache-2.0"
 bug-reports: "https://github.com/alavrik/piqi/issues"
 depends: [
   "ocaml" {>= "4.03"  & < "4.14.0"}