Vsix build task for langpacks (#15489)

* added refreshlangpack command

* added beginning update-localization yml file, also changed langpack location in RLE

* added regex tester

* moved xlf files into new folder structure

* small change to update-localization

* added yaml script for gulp refresh

* added missing dash.

* added better update-localization yml file

* remove update-localization as its not necessary

* added small changes to langpack-compile

* remove upload sourcemaps and write version information

* added more languages

* added vsce packaging

* added automatic langpack handling

* added built locFunc

* fixed refresh-langpack-extension

* working langpack vsix generator made

* added langpacks to files in copyArtifacts and product-build-linux

* changed command to package-langpacks

* removed unnecessary language flags.

* invalid ADS extensions filter explained

* Fix for regex

* removed unnecessary fields to change, and removed langpack-compile

* added doc comments.

* moved xlf files back to old place.

* WIP translation redirect

* isolated vsix build task

* fixed spaces in locFunc.ts

build/azure-pipelines/linux/sql-product-build-linux.yml

@@ -106,6 +106,11 @@ steps:
       yarn gulp package-external-extensions
     displayName: Package External extensions
 
+  - script: |
+      set -e
+      yarn gulp package-langpacks
+    displayName: Package Langpacks
+
   - script: |
       set -e
       service xvfb start
@@ -190,7 +195,7 @@ steps:
     inputs:
       ConnectedServiceName: 'Code Signing'
       FolderPath: '$(Build.SourcesDirectory)/.build'
-      Pattern: 'extensions/*.vsix'
+      Pattern: 'extensions/*.vsix,langpacks/*.vsix'
       signConfigType: inlineSignParams
       inlineOperation: |
         [
@@ -215,7 +220,7 @@ steps:
           }
         ]
       SessionTimeout: 120
-    displayName: 'Signing Extensions'
+    displayName: 'Signing Extensions and Langpacks'
     condition: and(succeeded(), eq(variables['signed'], true))
 
   - script: |