UI tests should be able to test both dev and store-released builds (#567)

Fixes #462

- Add x64 and x86 UI tests to the release builds (internal builds for the store)
- UI tests now accept the target app ID as a parameter in the runsettings file

build/pipelines/azure-pipelines.release.yaml

@@ -35,6 +35,16 @@ jobs:
     platform: ARM64
     condition: not(eq(variables['Build.Reason'], 'PullRequest'))
 
+- template: ./templates/run-ui-tests.yaml
+  parameters:
+    platform: x64
+    runsettingsFileName: CalculatorUITests.release.runsettings
+
+- template: ./templates/run-ui-tests.yaml
+  parameters:
+    platform: x86
+    runsettingsFileName: CalculatorUITests.release.runsettings
+
 - template: ./templates/run-unit-tests.yaml
   parameters:
     platform: x64