feat: introduce multi-line commands

[jzsfkzm]

refs #175

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.95238% with 4 lines in your changes missing coverage. Please review.

Project coverage is 9.73%. Comparing base (e8b2d5f) to head (e10fd4b).

Files with missing lines	Patch %	Lines
...deploy-web/src/components/sdl/CommandFormModal.tsx	0.00%	2 Missing ⚠️
apps/deploy-web/src/utils/sdl/sdlGenerator.ts	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             main    #968      +/-   ##
=========================================
- Coverage   11.84%   9.73%   -2.12%     
=========================================
  Files         448     435      -13     
  Lines       11916   11504     -412     
  Branches     2533    2455      -78     
=========================================
- Hits         1412    1120     -292     
+ Misses       9939    9818     -121     
- Partials      565     566       +1     

Flag	Coverage Δ
deploy-web	9.73% <80.95%> (+0.40%)	⬆️
provider-proxy	?

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[ygrishajev]

I might be missing the point here but there might be other executables out there then sh, should this be addressed?