perl: add Net::CIDR::Lite for iptables-mod-geoip

The DBIP geolocation database is generated from sparse data without
compaction.  Two different ISP's in the same country might have
adjacent CIDR blocks, and when aggregated as "country" data, may
be merged to conserve space.  This package facilitates this.

There are scripts to download and preprocess the GeoIP database
for iptables-mod-geoip which require this Perl module.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

lang/perl-net-cidr-lite/Makefile

@@ -0,0 +1,48 @@
+#
+# Copyright (C) 2020 Philip Prindeville, Redfish Solutions, LLC
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=perl-net-cidr-lite
+PKG_VERSION:=0.21
+PKG_RELEASE:=1
+
+PKG_SOURCE:=Net-CIDR-Lite-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://cpan.metacpan.org/authors/id/D/DO/DOUGW
+PKG_HASH:=cfa125e8a2aef9259bc3a44e07cbdfb7894b64d22e7c0cee92aee2f5c7915093
+PKG_BUILD_DIR:=$(BUILD_DIR)/perl/Net-CIDR-Lite-$(PKG_VERSION)
+
+PKG_MAINTAINER:=Philip Prindeville <philipp@redfish-solutions.com>
+PKG_LICENSE:=GPL-1.0-or-later Artistic-1.0-Perl
+
+include $(INCLUDE_DIR)/package.mk
+include ../perl/perlmod.mk
+
+define Package/perl-net-cidr-lite
+  SUBMENU:=Perl
+  SECTION:=lang
+  CATEGORY:=Languages
+  TITLE:=Perl extension for merging IPv4 or IPv6 CIDR addresses
+  URL:=https://search.cpan.org/dist/Net-CIDR-Lite/
+  DEPENDS:=perl +perlbase-essential +perlbase-config +perlbase-io +perlbase-dynaloader
+  PKGARCH:=all
+endef
+
+define Build/Configure
+        $(call perlmod/Configure,,)
+endef
+
+define Build/Compile
+        $(call perlmod/Compile,,)
+endef
+
+define Package/perl-net-cidr-lite/install
+        $(call perlmod/Install,$(1),Net Net/CIDR Net/CIDR/Lite.pm)
+endef
+
+
+$(eval $(call BuildPackage,perl-net-cidr-lite))