Replace public InitFromOptions with private ConfigureFromOptions

[yurishkuro]

Which problem is this PR solving?

• InitFromOptions was introduced 4yrs ago, but was not used by any code
• Recently NewFactoryWithConfig constructors started using that function, but they only need private access

Description of the changes

• Make function private
• Rename to ConfigureWithOptions, since it does not initialize any connections, unlike Initialize().

How was this change tested?

• CI

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.61%. Comparing base (4dc7708) to head (f70597f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5417      +/-   ##
==========================================
+ Coverage   94.60%   94.61%   +0.01%     
==========================================
  Files         346      346              
  Lines       16953    16951       -2     
==========================================
  Hits        16039    16039              
+ Misses        714      711       -3     
- Partials      200      201       +1     

Flag	Coverage Δ
badger_v1	10.28% <0.00%> (+<0.01%)	⬆️
badger_v2	6.42% <0.00%> (+<0.01%)	⬆️
cassandra-3.x-v1	18.16% <10.52%> (+0.03%)	⬆️
cassandra-3.x-v2	6.14% <0.00%> (+<0.01%)	⬆️
cassandra-4.x-v1	18.16% <10.52%> (+0.03%)	⬆️
cassandra-4.x-v2	6.11% <0.00%> (+<0.01%)	⬆️
elasticsearch-5.x	5.74% <0.00%> (+0.01%)	⬆️
elasticsearch-6.x	5.74% <0.00%> (+<0.01%)	⬆️
elasticsearch-7.x	5.73% <0.00%> (-0.01%)	⬇️
elasticsearch-8.x	5.73% <0.00%> (-0.01%)	⬇️
grpc_v1	12.59% <0.00%> (+<0.01%)	⬆️
grpc_v2	11.35% <0.00%> (-0.04%)	⬇️
kafka	9.99% <10.52%> (+0.03%)	⬆️
opensearch-1.x	5.73% <0.00%> (-0.01%)	⬇️
opensearch-2.x	5.74% <0.00%> (+<0.01%)	⬆️
unittests	91.44% <100.00%> (+0.02%)	⬆️

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