Export cpp_style configs to ydb

Export cpp_style configs to ydb
commit_hash:1f05f3bddb56ef6a6f010eedf7bd3342b2a78cbf

Author: andrei-levitskii

build/config/tests/cpp_style/a.yaml

@@ -0,0 +1,16 @@
+service: arcadia-unassigned
+title: clang-format default config
+
+arcanum:
+  review:
+    auto_assign: true
+    groups:
+      - name: cppcommittee
+        roles: cppcommittee:consultant
+    rules:
+      - subpaths: "config.clang-format"
+        reviewers:
+          - name: cppcommittee
+            assign: 1
+            ship: 0
+            min_approvers_count: 1

build/config/tests/cpp_style/default_configs.json

@@ -0,0 +1,3 @@
+{
+    "clang_format": "build/config/tests/cpp_style/config.clang-format"
+}