Group by TCPPoolConfig config; Improve read config file lines; Fix typo

[shawn1m]

No description provided.

[codecov]

Codecov Report

Merging #209 into master will decrease coverage by 8.14%.
The diff coverage is 27.71%.

@@            Coverage Diff             @@
##           master     #209      +/-   ##
==========================================
- Coverage   42.06%   33.91%   -8.15%     
==========================================
  Files           4       10       +6     
  Lines         233      457     +224     
==========================================
+ Hits           98      155      +57     
- Misses        116      276     +160     
- Partials       19       26       +7

Impacted Files	Coverage Δ
core/outbound/clients/resolver/https_resolver.go	0% <0%> (ø)
core/outbound/clients/resolver/tcp_resolver.go	0% <0%> (ø)
core/outbound/clients/resolver/tcptls_resolver.go	0% <0%> (ø)
core/outbound/clients/resolver/address.go	25% <0%> (ø)
core/outbound/dispatcher.go	59% <100%> (+5.59%)	⬆️
core/outbound/clients/resolver/base_resolver.go	33.33% <33.33%> (ø)
core/hosts/hosts.go	68.11% <66.66%> (+1.01%)	⬆️
core/outbound/clients/resolver/udp_resolver.go	77.77% <77.77%> (ø)
... and 4 more

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