dnsdist: Use getAddressInfo() instead python daemonized subprocess

[metajiji]

Short description

Use integrated getAddressInfo() function instead python script dockerdata/dnsdist-resolver.py.

Checklist

I have:

• read the CONTRIBUTING.md document
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)

[coveralls]

Pull Request Test Coverage Report for Build 12746749069

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 28 unchanged lines in 7 files lost coverage.
• Overall coverage increased (+0.004%) to 64.892%

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Files with Coverage Reduction	New Missed Lines	%
pdns/dnsdistdist/dnsdist-backend.cc	1	66.73%
pdns/recursordist/test-syncres_cc2.cc	3	88.85%
pdns/packethandler.cc	3	72.4%
pdns/recursordist/recpacketcache.hh	3	89.55%
pdns/recursordist/rec-main.cc	3	62.4%
pdns/recursordist/syncres.cc	6	80.15%
pdns/recursordist/rec-tcp.cc	9	64.98%

Totals
Change from base Build 12745616875:	0.004%
Covered Lines:	126294
Relevant Lines:	163805

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💛 - Coveralls

[rgacogne]

Looks good to me, thanks!

[Habbie]

very nice