License package as 0BSD

This implements RFC40 and RFC52.
https://lists.archlinux.org/archives/list/arch-dev-public@lists.archlinux.org/thread/XR3VAUWC5LNMTVOCKFOHYYEGUQ4ZFCNG/

LICENSE

@@ -0,0 +1,12 @@
+Copyright Arch Linux Contributors
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE
+FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

LICENSES/0BSD.txt

@@ -0,0 +1 @@
+../LICENSE

REUSE.toml

@@ -0,0 +1,22 @@
+version = 1
+
+[[annotations]]
+path = [
+    "PKGBUILD",
+    "README.md",
+    "keys/**",
+    ".SRCINFO",
+    ".nvchecker.toml",
+    "*.install",
+    "*.sysusers",
+    "*.tmpfiles",
+    "*.logrotate",
+    "*.pam",
+    "*.service",
+    "*.socket",
+    "*.timer",
+    "*.desktop",
+    "*.hook",
+]
+SPDX-FileCopyrightText = "Arch Linux contributors"
+SPDX-License-Identifier = "0BSD"