[package] opkg:

[package] opkg:
	- implement --add-dest and --add-arch commandline options, this allows to run entirely without configuration
	- tweak default config location patch to not require a config in offline root mode
	- rename --force-run-hooks option to --force-postinstall, its a more appropriate name
	- utilize new opkg commandline options in package-ipkg.mk and remove config file generation

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23032 3c298f89-4303-0410-b956-a3cf2f4a3e73