feat: introduce startScript and startService

[wellwelwel]

Start Script

Run your package.json scripts in a background process and test them 🧑🏻‍🔬

startScript(filePath: string, options?: startScriptOptions);

startScript execute a script directly from your package.json or deno.json and keep it running in a background process until you release it.

---

Start Service

Run your services in a background process and test them 🧑🏻‍🔬

startService(filePath: string, options?: StartServiceOptions);

startService execute a file directly and keep it running in a background process until you release it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (7581a4f) to head (6248eea).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #91   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        27    +1     
  Lines           26        27    +1     
=========================================
+ Hits            26        27    +1     

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