dev-python/more-itertools: Add from Gentoo

It's from Gentoo commit cada3bc03f3d12092931f8b3a61fd1ede7d5b510.

It's a dependency of dev-python/jaraco-functools and
dev-python/setuptools.

sdk_container/src/third_party/portage-stable/dev-python/more-itertools/Manifest

@@ -0,0 +1,2 @@
+DIST more-itertools-8.12.0.tar.gz 108698 BLAKE2B 2bc48aea5b8508381ac909a963d0fcbf08a17d2d96f17de1dd582bc8ced080be540322ee3f65c66eab1186d024bb2957e7bbddd62041242a7cc4cfff1ad67bc2 SHA512 73759f05d178bd6fe98cadac401707faf90a4f7b456c4aac3f0b3f6c13a2284600971e0b271f1768cacd3ae9b69848404f85432199ca51b8160fbe67045dfd17
+DIST more-itertools-8.13.0.tar.gz 101264 BLAKE2B 28c212e76f18081301c6d946e06112beb2a6a3fef3b99582d5ea98c2142e1e47b0f5300f441a4d206f5950120466212a9fde40eae53bce0098097063468f56f5 SHA512 2f3473cdd67ddcb2c658f60638b91a25c4ce9d9a92bbda5ca937dd4748857408bfe8dd9d4e699f53bd9f10d7b433db57e499bd28f184b8faa58b2004f2c92004

sdk_container/src/third_party/portage-stable/dev-python/more-itertools/metadata.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>python@gentoo.org</email>
+		<name>Python</name>
+	</maintainer>
+	<stabilize-allarches/>
+	<upstream>
+		<remote-id type="pypi">more-itertools</remote-id>
+		<remote-id type="github">more-itertools/more-itertools</remote-id>
+		<bugs-to>https://github.com/more-itertools/more-itertools/issues</bugs-to>
+	</upstream>
+</pkgmetadata>

sdk_container/src/third_party/portage-stable/dev-python/more-itertools/more-itertools-8.12.0-r1.ebuild

@@ -0,0 +1,37 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# please keep this ebuild at EAPI 7 -- sys-apps/portage dep
+EAPI=7
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( python3_{8..10} pypy3 )
+inherit distutils-r1
+
+DESCRIPTION="More routines for operating on iterables, beyond itertools"
+HOMEPAGE="https://pypi.org/project/more-itertools/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+
+distutils_enable_sphinx docs \
+	dev-python/sphinx_rtd_theme
+distutils_enable_tests unittest
+
+src_configure() {
+	grep -q '\[build-system\]' pyproject.toml &&
+		die "Upstream added [build-system] to pyproject.toml, recheck"
+	# write a custom pyproject.toml to ease setuptools bootstrap
+	cat > pyproject.toml <<-EOF || die
+		[build-system]
+		requires = ["flit_core >=3.2,<4"]
+		build-backend = "flit_core.buildapi"
+
+		[project]
+		name = "more_itertools"
+		version = "${PV}"
+		description = "More routines for operating on iterables, beyond itertools"
+	EOF
+}

sdk_container/src/third_party/portage-stable/dev-python/more-itertools/more-itertools-8.13.0.ebuild

@@ -0,0 +1,25 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# please keep this ebuild at EAPI 7 -- sys-apps/portage dep
+EAPI=7
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( python3_{8..11} pypy3 )
+
+inherit distutils-r1
+
+DESCRIPTION="More routines for operating on iterables, beyond itertools"
+HOMEPAGE="
+	https://github.com/more-itertools/more-itertools/
+	https://pypi.org/project/more-itertools/
+"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+
+distutils_enable_sphinx docs \
+	dev-python/sphinx_rtd_theme
+distutils_enable_tests unittest