Enable build numbers, and set property msvc of angle recipe to true on win_msvc bot.

cr-buildbucket.cfg

@@ -46,6 +46,9 @@ builder_mixins {
 builder_mixins {
   name: "win"
   dimensions: "os:Windows"
+  recipe {
+    properties_j: "msvc:true"
+  }
 }
 
 buckets {
@@ -60,6 +63,7 @@ buckets {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
         name: "angle"
+        build_numbers: YES
       }
       service_account: "angle-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     }
@@ -89,6 +93,7 @@ buckets {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
         name: "angle"
+        build_numbers: YES
         properties_j: "$depot_tools/bot_update:{\"apply_patch_on_gclient\":true}"
       }
       service_account: "angle-try-builder@chops-service-accounts.iam.gserviceaccount.com"