added packages/vpt/vpt.3.0.0 (ocaml#11205)

* added packages/vpt/vpt.3.0.0

This is a new version (and a renaming) of the previous minivpt package.
This implementation is no more minimal, uses another build system
and installs a library called vpt, with modules accessible under the namespace
Vpt.

* use 'jbuilder -p name' instead of 'jbuilder'

* suggestions from rgrinberg

packages/vpt/vpt.3.0.0/descr

@@ -0,0 +1,5 @@
+Vantage point tree implementation in OCaml.
+
+A vantage point tree allows to do fast but exact nearest neighbor searches
+in any space provided that you have a metric (function) to measure the
+distance between any two points in that space.

packages/vpt/vpt.3.0.0/opam

@@ -0,0 +1,13 @@
+opam-version: "1.2"
+maintainer: "[email protected]"
+authors: ["Francois BERENGER"]
+homepage: "https://github.com/UnixJunkie/vp-tree"
+bug-reports: "https://github.com/UnixJunkie/vp-tree/issues"
+dev-repo: "https://github.com/UnixJunkie/vp-tree.git"
+license: "BSD-3"
+build: [
+  ["jbuilder" "build" "-p" name "-j" jobs]
+]
+depends: [
+  "jbuilder" {build}
+]

packages/vpt/vpt.3.0.0/url

@@ -0,0 +1,2 @@
+archive: "https://github.com/UnixJunkie/vp-tree/archive/v3.0.0.tar.gz"
+checksum: "172f210c7ac22193f26a96472f8fb1e4"