Added YAML builtbot config file.

Builtbot is switching over from json to yaml. Both
configuration files should be kept in sync for now.

The json file will be removed when everything works as expected.

build_files/config/pipeline_config.yaml

@@ -0,0 +1,70 @@
+#
+# Used by Buildbot build pipeline make_update.py script only for now
+# We intended to update the make_update.py in the branches to use this file eventually
+#
+update-code:
+    git:
+        submodules:
+        -   branch: master
+            commit_id: HEAD
+            path: release/scripts/addons
+        -   branch: master
+            commit_id: HEAD
+            path: release/scripts/addons_contrib
+        -   branch: master
+            commit_id: HEAD
+            path: release/datafiles/locale
+        -   branch: master
+            commit_id: HEAD
+            path: source/tools
+    svn:
+        libraries:
+            darwin-arm64:
+                branch: trunk
+                commit_id: HEAD
+                path: lib/darwin_arm64
+            darwin-x86_64:
+                branch: trunk
+                commit_id: HEAD
+                path: lib/darwin
+            linux-x86_64:
+                branch: trunk
+                commit_id: HEAD
+                path: lib/linux_centos7_x86_64
+            windows-amd64:
+                branch: trunk
+                commit_id: HEAD
+                path: lib/win64_vc15
+        tests:
+            branch: trunk
+            commit_id: HEAD
+            path: lib/tests
+        benchmarks:
+            branch: trunk
+            commit_id: HEAD
+            path: lib/benchmarks
+
+#
+# Buildbot only configs
+#
+buildbot:
+    gcc:
+        version: '9.0.0'
+    cuda10:
+        version: '10.1.0'
+    cuda11:
+        version: '11.4.0'
+    optix:
+        version: '7.1.0'
+    cmake:
+        default:
+            version: any
+            overrides: {}
+        darwin-arm64:
+            overrides: {}
+        darwin-x86_64:
+            overrides: {}
+        linux-x86_64:
+            overrides: {}
+        windows-amd64:
+            overrides: {}