[xcassets] Use output of actool to determine compiled assets to preserve.
[xcassets] Use output of actool to determine compiled assets to preserve.

beni55/RubyMotion,jjaffeux/RubyMotion,jjaffeux/RubyMotion,HipByte/RubyMotion,hboon/RubyMotion,beni55/RubyMotion,jjaffeux/RubyMotion,hboon/RubyMotion,katsuyoshi/RubyMotion,beni55/RubyMotion,HipByte/RubyMotion,hboon/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,HipByte/RubyMotion,katsuyoshi/RubyMotion,incbee/RubyMotion,incbee/RubyMotion,jjaffeux/RubyMotion,incbee/RubyMotion,katsuyoshi/RubyMotion,katsuyoshi/RubyMotion