Add WebApplicationBuilderExtensions.

[maliming]

No description provided.

[codecov]

Codecov Report

Merging #11074 (efae489) into dev (addffe7) will decrease coverage by 0.00%.
The diff coverage is 11.11%.

@@            Coverage Diff             @@
##              dev   #11074      +/-   ##
==========================================
- Coverage   54.43%   54.42%   -0.01%     
==========================================
  Files        2657     2658       +1     
  Lines       76403    76417      +14     
==========================================
  Hits        41590    41590              
- Misses      34813    34827      +14     

Impacted Files	Coverage Δ
...ndencyInjection/WebApplicationBuilderExtensions.cs	0.00% <0.00%> (ø)
...rc/Volo.Abp.Core/Volo/Abp/AbpApplicationFactory.cs	62.50% <50.00%> (ø)

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