dev-js/*: pelias-openstreetmap dependencies

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-js/through2-map/Manifest

@@ -0,0 +1 @@
+DIST through2-map-3.0.0.tgz 4241 BLAKE2B cf4a568c60bce7b474c8f3973fb087dad740a939ef0c8fed0d0126c1cdb22436d75c5ee3928f1f677998ebe693024870be5ea5105795168b72c9ad24059ab4e1 SHA512 32cebc40f6d224a8d1618edf9aa647074546b7ebc3d3fb639831d45a0c65b6389f0a87fa8595967900048b6ed68dbb3b8f2365208c9ead0c3f4d58fb80791dfd

dev-js/through2-map/metadata.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>lssndrbarbieri@gmail.com</email>
+    <name>Alessandro Barbieri</name>
+  </maintainer>
+  <upstream>
+    <bugs-to>https://github.com/brycebaril/through2-map/issues</bugs-to>
+    <remote-id type="github">brycebaril/through2-map</remote-id>
+  </upstream>
+</pkgmetadata>

dev-js/through2-map/through2-map-3.0.0.ebuild

@@ -0,0 +1,19 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit node
+
+DESCRIPTION="A through2 to create an Array.prototype.map analog for streams."
+HOMEPAGE="
+	https://github.com/brycebaril/through2-map
+	https://www.npmjs.com/package/through2-map
+"
+LICENSE="MIT"
+KEYWORDS="~amd64"
+RDEPEND="
+	${NODEJS_RDEPEND}
+	dev-js/through2
+	dev-js/xtend
+"