[arch-dev-public] moving bridge-utils to [extra]

Hello everybody, with the release of bridge-utils v1.7 the utility has been deprecated in favor of iproute2 which supports even more features. I would like to move it from [core] to [extra] if nobody raises concerns. https://git.kernel.org/pub/scm/linux/kernel/git/shemminger/bridge-utils.git/... -- main(a){char*c=/* Schoene Gruesse */"B?IJj;MEH" "CX:;",b;for(a/* Best regards my address: */=0;b=c[a++];) putchar(b-1/(/* Chris cc -ox -xc - && ./x */b/42*2-3)*42);}