enhancement to add resolv.conf options set

[ssurenr]

Either modify search_domain job or create a new job to modify resolv.conf options set such as timeout, rotate, etc.
Ref: https://www.freebsd.org/cgi/man.cgi?query=resolv.conf&manpath=SuSE+Linux/i386+11.3

[cppforlife]

@ssurenr i would be open to a PR to add resolv job that supersedes search_domain job and exposes other options. btw some of the options are not necessary if bosh-dns is in use (soon to be default for bosh installations). bosh-dns for example rotates and randomly chooses recursors.

[ssurenr]

The purpose of this proposal is to contain the impact of a DNS Sever failure regardless whether it is in-house DNS or Bosh DNS. I would love to submit a PR but need some technical help.

[dpb587-pivotal]

@ssurenr feel free to use the referenced search_domain job as a basis for your change to add a new resolv job. Once you have had a chance to test your release with the new job, we'll be able to review your pull request. Thanks.