New package: fd-find (#15344)

* New package: fd-find

Add package for fd-find:

    A simple, fast and user-friendly alternative to 'find'.

* Update copyright date

var/spack/repos/builtin/packages/fd-find/package.py

+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class FdFind(Package):
+    """A simple, fast and user-friendly alternative to 'find'."""
+
+    homepage = "https://github.com/sharkdp/fd"
+    url      = "https://github.com/sharkdp/fd/archive/v7.3.0.tar.gz"
+
+    version('7.4.0', sha256='33570ba65e7f8b438746cb92bb9bc4a6030b482a0d50db37c830c4e315877537')
+
+    depends_on('rust')
+
+    def install(self, spec, prefix):
+        cargo = which('cargo')
+        cargo('install', '--root', prefix, '--path', '.')