Obsolete pipeline build process, a possible new sample version in YAML

[nigul2009]

The new sample version in YAML:

# Gradle
# Build your Java project and run tests with Gradle using a Gradle wrapper script.
# Add steps that analyze code, save build artifacts, deploy, and more:
# https://docs.microsoft.com/azure/devops/pipelines/languages/java

trigger:
- master

pool:
  vmImage: 'ubuntu-latest'

steps:
- task: Gradle@2
  inputs:
    workingDirectory: 'src/Backend/IntegrationService'
    gradleWrapperFile: 'src/Backend/IntegrationService/gradlew'
    gradleOptions: '-Xmx3072m'
    javaHomeOption: 'JDKVersion'
    jdkVersionOption: '1.8'
    jdkArchitectureOption: 'x64'
    publishJUnitResults: false
    testResultsFiles: '**/TEST-*.xml'
    tasks: 'build'
- task: Gradle@2
  inputs:
    gradleWrapperFile: 'src/Backend/OrderService/gradlew'
    workingDirectory: 'src/Backend/OrderService'
    tasks: 'build'
    publishJUnitResults: true
    testResultsFiles: '**/TEST-*.xml'
    gradleOptions: '-Xmx3072m'
    javaHomeOption: 'JDKVersion'
    jdkVersionOption: '1.8'
    jdkArchitectureOption: 'x64'
    sonarQubeRunAnalysis: false
- task: Gradle@2
  inputs:
    gradleWrapperFile: 'src/Clients/gradlew'
    workingDirectory: 'src/Clients'
    tasks: 'build'
    publishJUnitResults: false
    gradleOptions: '-Xmx3072m'
    javaHomeOption: 'JDKVersion'
    jdkVersionOption: '1.8'
    jdkArchitectureOption: 'x64'
    sonarQubeRunAnalysis: false
- task: CopyFiles@2
  inputs:
    SourceFolder: $(Build.SourcesDirectory)/src
    Contents: '**/build/libs/!(buildSrc)*.?ar'
    TargetFolder: $(build.artifactstagingdirectory)/drop
- task: CopyFiles@2
  inputs:
    SourceFolder: $(Build.SourcesDirectory)/deploy
    Contents: |
               *SSH-MRP-Artifacts.ps1
               *deploy_mrp_app.sh
               *MongoRecords.js
    TargetFolder: $(build.artifactstagingdirectory)/deploy
- task: PublishBuildArtifacts@1
  inputs:
    PathtoPublish: $(build.artifactstagingdirectory)/drop
    ArtifactName: 'drop'
    publishLocation: 'Container'
- task: PublishBuildArtifacts@1
  inputs:
    PathtoPublish: $(build.artifactstagingdirectory)/deploy
    ArtifactName: 'deploy'
    publishLocation: 'Container'