app-arch/zarchive: new package

I don't know is it dev-lib/ or app-arch/ category

I think app-arch/

Signed-off-by: Denis Reva <denis7774@gmail.com>

app-arch/zarchive/Manifest

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+DIST zarchive-0.1.2.tar.gz 19779 BLAKE2B 1dc985d442b6758638022f5d4e42d225d47632f11c4d2a231589e84eee82ddd2ef8d45073c84ae7c08aab6619b41ff3b1a6961fadc7a2fe755d04b0693646568 SHA512 b9666e8e86e5162b4ee641905a288088311d5cd1af510b2fbf22eba722ad2d8ca43a081b14c0106743807eff256bac9a0cacbdeb06e8ccad0e8d5b9ed8fa886e

app-arch/zarchive/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
+<pkgmetadata>
+	<maintainer type="person">
+		<email>denis7774@gmail.com</email>
+		<name>Denis Reva</name>
+		<description>rarogcmex</description>
+	</maintainer>
+	<longdescription lang="en">
+	ZArchive is yet another file archive format. Think of zip, tar, 7z, etc. but with the requirement of allowing random-access reads and supporting compression.
+
+	- Supports random-access reads within stored files
+	- Uses zstd compression (64KiB blocks)
+	- Scales reasonably well up to multiple terabytes with millions of files
+	- The theoretical size limit per-file is 2^48-1 (256 Terabyte)
+	- The encoding for paths within the archive is Windows-1252 (case-insensitive)
+	- Contains a SHA256 hash of the whole archive for integrity checks
+	- Endian-independent. The format always uses big-endian internally
+	- Stateless file and directory iterator handles which don't require memory allocation
+	</longdescription>
+	<upstream>
+		<remote-id type="github">Exzap/ZArchive</remote-id>
+	</upstream>
+</pkgmetadata>

app-arch/zarchive/zarchive-0.1.2.ebuild

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+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Library for creating and reading zstd-compressed file archives (.zar)"
+HOMEPAGE="https://github.com/Exzap/ZArchive"
+SRC_URI="https://github.com/Exzap/ZArchive/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+
+DEPEND="app-arch/zstd"
+RDEPEND="${DEPEND}"
+BDEPEND="dev-util/cmake"
+
+S="${WORKDIR}/ZArchive-${PV}"