package/ifupdown2: new package

This is the next generation ifupdown from Cumulus Networks (now NVIDIA).
The idea is to use this to set up everything port/lag/vlan/interface
related in the system.

This first import uses the kkit branch from the KernelKit fork, becuase
of, amongst other things, integration problems with upstream packages.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

package/Config.in

@@ -1,2 +1,3 @@
 source "$BR2_EXTERNAL_INFIX_PATH/package/finit/Config.in"
+source "$BR2_EXTERNAL_INFIX_PATH/package/ifupdown2/Config.in"
 source "$BR2_EXTERNAL_INFIX_PATH/package/skeleton-init-finit/Config.in"

package/ifupdown2/Config.in

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_IFUPDOWN2
+	bool "ifupdown2"
+	select BR2_PACKAGE_IPROUTE2
+	select BR2_PACKAGE_PYTHON3 # need, e.g., xml
+	select BR2_PACKAGE_PYTHON_MAKO # runtime
+	select BR2_PACKAGE_PYTHON_SIX # runtime
+	select BR2_PACKAGE_PYTHON_SETUPTOOLS # runtime
+	help
+	  Second generation high level tools to configure network interfaces.
+
+	  https://github.com/CumulusNetworks/ifupdown2/

package/ifupdown2/ifupdown2.mk

@@ -0,0 +1,14 @@
+################################################################################
+#
+# ifupdown2
+#
+################################################################################
+
+IFUPDOWN2_VERSION = a97d3e0cf96ab44e1e37a5940c83ea390f6656c7
+IFUPDOWN2_SITE = $(call github,kernelkit,ifupdown2,$(IFUPDOWN2_VERSION))
+IFUPDOWN2_LICENSE = GPL-2.0+
+IFUPDOWN2_LICENSE_FILES = LICENSE
+IFUPDOWN2_DEPENDENCIES = iproute2 python3 python-mako python-six python-setuptools
+IFUPDOWN2_SETUP_TYPE = setuptools
+
+$(eval $(python-package))