Add --show-transitive-rulekeys to buck targets
Add --show-transitive-rulekeys to buck targets

Summary:
This only takes effect when --show-rulekeys is specified.  It will print
the transitive deps of the specified targets and their rule keys.

The intention is to use this to compose a list of artifacts to pre-fetch
from cache.

Test Plan: Ran it on an android_binary.  Saw dexes and abis.

Reviewed By: marcinkosiba

fbshipit-source-id: c0024d1

Addepar/buck,dsyang/buck,shs96c/buck,facebook/buck,romanoid/buck,robbertvanginkel/buck,JoelMarcey/buck,shs96c/buck,nguyentruongtho/buck,Addepar/buck,k21/buck,zpao/buck,SeleniumHQ/buck,Addepar/buck,rmaz/buck,rmaz/buck,clonetwin26/buck,brettwooldridge/buck,k21/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,kageiit/buck,romanoid/buck,LegNeato/buck,k21/buck,zhan-xiong/buck,romanoid/buck,clonetwin26/buck,LegNeato/buck,LegNeato/buck,shybovycha/buck,marcinkwiatkowski/buck,zpao/buck,brettwooldridge/buck,k21/buck,brettwooldridge/buck,robbertvanginkel/buck,romanoid/buck,brettwooldridge/buck,nguyentruongtho/buck,LegNeato/buck,kageiit/buck,shybovycha/buck,shs96c/buck,Addepar/buck,zhan-xiong/buck,clonetwin26/buck,zhan-xiong/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,zpao/buck,robbertvanginkel/buck,shs96c/buck,shs96c/buck,brettwooldridge/buck,shs96c/buck,JoelMarcey/buck,clonetwin26/buck,rmaz/buck,robbertvanginkel/buck,k21/buck,ilya-klyuchnikov/buck,romanoid/buck,robbertvanginkel/buck,brettwooldridge/buck,shybovycha/buck,facebook/buck,marcinkwiatkowski/buck,JoelMarcey/buck,rmaz/buck,zpao/buck,k21/buck,romanoid/buck,SeleniumHQ/buck,k21/buck,SeleniumHQ/buck,shs96c/buck,LegNeato/buck,zhan-xiong/buck,nguyentruongtho/buck,rmaz/buck,LegNeato/buck,Addepar/buck,Addepar/buck,dsyang/buck,nguyentruongtho/buck,kageiit/buck,clonetwin26/buck,dsyang/buck,robbertvanginkel/buck,dsyang/buck,shs96c/buck,Addepar/buck,ilya-klyuchnikov/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,shybovycha/buck,ilya-klyuchnikov/buck,k21/buck,shs96c/buck,Addepar/buck,LegNeato/buck,ilya-klyuchnikov/buck,dsyang/buck,shybovycha/buck,rmaz/buck,SeleniumHQ/buck,zpao/buck,romanoid/buck,ilya-klyuchnikov/buck,kageiit/buck,shybovycha/buck,zhan-xiong/buck,clonetwin26/buck,nguyentruongtho/buck,romanoid/buck,JoelMarcey/buck,marcinkwiatkowski/buck,LegNeato/buck,ilya-klyuchnikov/buck,romanoid/buck,shs96c/buck,shs96c/buck,dsyang/buck,LegNeato/buck,LegNeato/buck,k21/buck,clonetwin26/buck,brettwooldridge/buck,k21/buck,clonetwin26/buck,marcinkwiatkowski/buck,dsyang/buck,clonetwin26/buck,SeleniumHQ/buck,Addepar/buck,nguyentruongtho/buck,k21/buck,shs96c/buck,kageiit/buck,JoelMarcey/buck,rmaz/buck,SeleniumHQ/buck,rmaz/buck,marcinkwiatkowski/buck,zhan-xiong/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,marcinkwiatkowski/buck,zhan-xiong/buck,SeleniumHQ/buck,SeleniumHQ/buck,clonetwin26/buck,rmaz/buck,dsyang/buck,romanoid/buck,JoelMarcey/buck,dsyang/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,shybovycha/buck,LegNeato/buck,shybovycha/buck,marcinkwiatkowski/buck,ilya-klyuchnikov/buck,Addepar/buck,marcinkwiatkowski/buck,shybovycha/buck,marcinkwiatkowski/buck,brettwooldridge/buck,romanoid/buck,JoelMarcey/buck,JoelMarcey/buck,dsyang/buck,shybovycha/buck,kageiit/buck,dsyang/buck,romanoid/buck,SeleniumHQ/buck,SeleniumHQ/buck,zhan-xiong/buck,robbertvanginkel/buck,zhan-xiong/buck,marcinkwiatkowski/buck,ilya-klyuchnikov/buck,Addepar/buck,shybovycha/buck,robbertvanginkel/buck,romanoid/buck,brettwooldridge/buck,clonetwin26/buck,zhan-xiong/buck,LegNeato/buck,LegNeato/buck,facebook/buck,rmaz/buck,rmaz/buck,shybovycha/buck,brettwooldridge/buck,robbertvanginkel/buck,JoelMarcey/buck,marcinkwiatkowski/buck,Addepar/buck,shs96c/buck,k21/buck,clonetwin26/buck,zpao/buck,SeleniumHQ/buck,SeleniumHQ/buck,dsyang/buck,JoelMarcey/buck,zhan-xiong/buck,k21/buck,facebook/buck,zpao/buck,rmaz/buck,zhan-xiong/buck,facebook/buck,shybovycha/buck,brettwooldridge/buck,facebook/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,rmaz/buck,zhan-xiong/buck,clonetwin26/buck,robbertvanginkel/buck,brettwooldridge/buck,Addepar/buck,dsyang/buck,nguyentruongtho/buck,kageiit/buck,facebook/buck