getaddrinfo_a() cannot get ttl from dns query, adding c-ares library to retrieve ttl after.

We send another query for ttl for now. May need to replace whole getaddrinfo_a() process with ares_getaddrinfo() in the future.

CLI:

webagent service "WEB_AGENT1" 10.18.206.10 8080 0

webagent dns cache on

show webagent dns host

www.googletagmanager.com:

142.250.198.72 TTL:63

560-nbs-753.mktoresp.com:

199.15.214.243 TTL:270

tags.srv.stackadapt.com:

34.196.12.18 TTL:30

connect.facebook.net:

31.13.87.5 TTL:30

cdn.bizible.com:

152.195.58.59 TTL:3283

geolocation.onetrust.com:

172.64.155.119 TTL:269

nvidia.tt.omtrdc.net:

63.140.50.191 TTL:149

nvidiacorp.us-5.evergage.com:

18.116.125.218 TTL:29

assets.adobedtm.com:

23.208.80.236 TTL:29

cdn.cookielaw.org:

104.18.87.42 TTL:269

images.nvidia.com:

117.18.232.232 TTL:1490

www.nvidia.com:

210.71.227.211 TTL:29

analytics.twitter.com:

104.244.42.195 TTL:633

t.co:

162.159.140.229 TTL:28