Using custom 1ES pool for running build pipelines. (#1414)

* Enable trimming to reduce package size

* trimming kusto

* Trying a new pool

* Fixing yaml errors

* Removing package trimming

* Removing formatting changes

* Using specific image

* Fixing formatting

* Fixing yml syntax

azure-pipelines/build-and-release.yml

@@ -6,10 +6,9 @@ stages:
   jobs:
   - job: Build
     pool: 
-        vmImage: 'windows-latest'
+      name: 'ads-build-1es-hosted-pool'
       demands:
-        - Cmd
-        - npm
+      - ImageOverride -equals ADS-Windows_Image
     steps:
     - template: build.yml
 
@@ -21,7 +20,9 @@ stages:
   - Build
   condition: and(succeeded(), eq(variables['RELEASE'], 'true'))
   pool: 
-    vmImage: 'Ubuntu-18.04'
+    name: 'ads-build-1es-hosted-pool'
+    demands:
+    - ImageOverride -equals ADS-Linux_Image
   jobs:
   - job: Release
     steps: