dev-ml/ocaml-csv: new package, add 2.4

Signed-off-by: Thomas Bracht Laumann Jespersen <t@laumann.xyz>

dev-ml/ocaml-csv/Manifest

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+DIST ocaml-csv-2.4.gh.tar.gz 45975 BLAKE2B bd06ff06a39fb9e4239e737986c8347845bac6d652eae687a71b7aba09fea84e0902e921eab668a95e123bb4b1bba8e39419b79edd3775ef4bf59c750df39b8b SHA512 618c900d8fc3c9d09e45178e2794e1d5907c6a2d8344a3af066496cbc344e6203e5c1de4119ebef8fd58ff1537f8b832882294bdbffb220dcb5b78efb8d526b3

dev-ml/ocaml-csv/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>t@laumann.xyz</email>
+    <name>Thomas Bracht Laumann Jespersen</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">Chris00/ocaml-csv</remote-id>
+  </upstream>
+</pkgmetadata>

dev-ml/ocaml-csv/ocaml-csv-2.4.ebuild

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+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DUNE_PKG_NAME=csv
+inherit dune
+
+DESCRIPTION="CSV library for OCaml"
+HOMEPAGE="https://github.com/Chris00/ocaml-csv"
+SRC_URI="https://github.com/Chris00/${PN}/archive/${PV}.tar.gz -> ${P}.gh.tar.gz"
+
+# license: "LGPL-2.1 with OCaml linking exception"
+LICENSE="LGPL-2.1"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="+ocamlopt"
+
+RDEPEND="
+	dev-ml/lwt:=[ocamlopt?]
+	>=dev-ml/uutf-1.0.0:=[ocamlopt?]
+	>=dev-lang/ocaml-4.03:=[ocamlopt?]
+"
+DEPEND="${RDEPEND}"