feat: add create and new alias for init

[snitin315]

What kind of change does this PR introduce?
feature

Did you add tests for your changes?
Yes
If relevant, did you update the documentation?
Yes WIP
Summary
Fixes #2599

create new aliases - create, new

Latest usage - webpack init|create|new|c|n [generation-path] [options]

Does this PR introduce a breaking change?
No

Other information
No

[alexander-akait]

Can we update OPTIONS.md?

[snitin315]

Yes just fixing one issue, now init is printing three times in help output.

[codecov]

Codecov Report

Merging #2616 (6389e7a) into master (debe93b) will increase coverage by 6.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2616      +/-   ##
==========================================
+ Coverage   89.03%   95.11%   +6.07%     
==========================================
  Files          31       31              
  Lines        1514     1514              
  Branches      431      431              
==========================================
+ Hits         1348     1440      +92     
+ Misses        166       74      -92     

Impacted Files	Coverage Δ
packages/generators/src/index.ts	100.00% <ø> (ø)
packages/webpack-cli/lib/webpack-cli.js	96.14% <100.00%> (+9.62%)	⬆️
packages/serve/src/startDevServer.ts	87.30% <0.00%> (+4.76%)	⬆️
packages/serve/src/index.ts	91.22% <0.00%> (+7.01%)	⬆️

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[alexander-akait]

I will finish PR, thanks for help

[alexander-akait]

Found other bug, webpack help new is not working

[alexander-akait]

Thanks