dev-python/pydispatcher: restore package

should not have been removed, it is a dependency of
dev-python/scrapy, the package from ::gentoo was incorrect
and did not work for scrapy.

Signed-off-by: Aisha Tammy <gentoo@aisha.cc>

dev-python/pydispatcher/pydispatcher-2.0.5.ebuild

@@ -0,0 +1,19 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit distutils-r1
+
+DESCRIPTION="Multi-producer-multi-consumer signal dispatching mechanism"
+HOMEPAGE="https://github.com/scrapy/pypydispatcher https://pypi.org/project/PyPyDispatcher/"
+MY_P=PyDispatcher
+SRC_URI="mirror://pypi/${MY_P:0:1}/${MY_P}/${MY_P}-${PV}.tar.gz"
+S=${WORKDIR}/${MY_P}-${PV}
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+
+distutils_enable_tests unittest