Major changes for consideration

[jose-pr]

A lot of changes to allow:

• Choice of bind points, address, port, proto
• Multiple upstream forwarders
• Custom Resolver with helper resolvers such as a RoundRobinResolver
• Partial support for DNSSEC queries to upstream nameservers
• Configuration in multiple formats, json, toml, yaml
• Attempt at better thread safety with ShareObject
• Minor changes to dependencies to account for new features
• Minor changes to pyproject to work with vcode pytests

[codecov]

Codecov Report

Attention: Patch coverage is 72.70789% with 128 lines in your changes missing coverage. Please review.

Project coverage is 74.50%. Comparing base (a99dfe9) to head (eb48dba).

Files with missing lines	Patch %	Lines
dnserver/resolver.py	68.75%	31 Missing and 9 partials ⚠️
dnserver/dnssec.py	33.92%	35 Missing and 2 partials ⚠️
dnserver/main.py	75.38%	12 Missing and 20 partials ⚠️
dnserver/config.py	76.92%	10 Missing and 2 partials ⚠️
dnserver/common.py	92.47%	4 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #20       +/-   ##
===========================================
- Coverage   97.54%   74.50%   -23.04%     
===========================================
  Files           4        8        +4     
  Lines         204      510      +306     
  Branches       37      122       +85     
===========================================
+ Hits          199      380      +181     
- Misses          3       93       +90     
- Partials        2       37       +35     

Files with missing lines	Coverage Δ
dnserver/__init__.py	100.00% <100.00%> (ø)
dnserver/cli.py	94.73% <100.00%> (+0.14%)	⬆️
dnserver/common.py	92.47% <92.47%> (ø)
dnserver/config.py	76.92% <76.92%> (ø)
dnserver/main.py	76.29% <75.38%> (-22.83%)	⬇️
dnserver/dnssec.py	33.92% <33.92%> (ø)
dnserver/resolver.py	68.75% <68.75%> (ø)

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