Added node16 execution handler

[AndreyIvanov42]

Task description:

Added node16 execution handler - to be able to execute tasks using this version.
Mostly similar to #3103

Changelog

• Added new execution handler
• Changed logic for choosing node version by priority
• Added unit tests

Testing

• Changes have been tested on Linux, MacOS, Windows:
  by unit-tests
  manually as part of some task. Used tasks and cases are described here
• Enough test coverage for changes and current test coverage for the task doesn't look poor
• I didn't find any breaking changes
• There are no other concerns
• I haven't discovered any new uncovered test/use cases

[alexander-smolyakov]

Please take a look at the comments

[alexander-smolyakov]

Could you please update the PR description as well?

[AndreyIvanov42]

Could you please update the PR description as well?

Done

[AndreyIvanov42]

Migrated task

CopyFiles, UsePythonVersion, CMake

Environment used (OS/Agent)

Windows 10x64 / Agent with Node 16 handler, Ubuntu 16.04x64 / Agent with Node 16 handler, macOS 12 / Agent with Node 16 handler

Test cases

- task: CMake@1
  inputs:
    workingDirectory: 'src'
    cmakeArgs: -DCMAKE_SHELL=false -DTEST_ONE=one;two -DTEST_TWO=/one/two/three -DTEST_WIN_VARIABLE=test -DTEST_VARIABLE=test
    runInsideShell: false 

- task: CMake@1
  inputs:
    workingDirectory: 'src'
    cmakeArgs: -DCMAKE_SHELL=true -DTEST_ONE=one;two -DTEST_TWO=/one/two/three -DTEST_VARIABLE=$USER -DTEST_WIN_VARIABLE=%OS%
    runInsideShell: true

- task: UsePythonVersion@0
  inputs:
    versionSpec: 3.10.5
    disableDownloadFromRegistry: true

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: *.js
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: false
    OverWrite: false
    flattenFolders: false
    preserveTimestamp: true

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: *.js
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: false
    OverWrite: true
    flattenFolders: false
    preserveTimestamp: true

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: *
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: true
    OverWrite: false
    flattenFolders: false
    preserveTimestamp: false

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: **/bin/**
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: true
    OverWrite: false
    flattenFolders: true
    preserveTimestamp: false

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: **
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: true
    OverWrite: false
    flattenFolders: true
    preserveTimestamp: false

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents: |
      *.css
      **/bin/**.css
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: true
    OverWrite: false
    flattenFolders: true
    preserveTimestamp: false

- task: CopyFiles@2
  inputs:
    SourceFolder: 'src/copy-files/source'
    Contents:  root-file1.js
    TargetFolder: 'src/copy-files/target'
    CleanTargetFolder: true
    OverWrite: false
    flattenFolders: false
    preserveTimestamp: true

[alexander-smolyakov]

LGTM and please take a look at the comment below