Bridge (#21975)

* Update bridge app

Cluster definitions are automatically generated from the IDL and
devices automatically route read/writes to the appropriate cluster.

Writes can be intercepted on a per-cluster basis to talk to whatever
bridged backend there is.

* fix build

* fix test outputs

* Split generated files out

Updates userinput backend to run commands on matter thread

* Add PW RPC

* addressing comments

* update for CR comments

* Rename app, move to using STL

* comments

* Fix build, resyled changed

* fix tests

* add zap, fix paths pointing to old app

* Restyled by gn & fix codegen test

* fix idl tests

Co-authored-by: Restyled.io <commits@restyled.io>

examples/dynamic-bridge-app/bridge-common/BUILD.gn

@@ -0,0 +1,41 @@
+# Copyright (c) 2020 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/chip.gni")
+
+import("${chip_root}/examples/common/pigweed/pigweed_rpcs.gni")
+import("${chip_root}/src/app/chip_data_model.gni")
+
+chip_data_model("dynamic-bridge-common") {
+  zap_file = "bridge-app.zap"
+
+  zap_pregenerated_dir =
+      "${chip_root}/zzz_generated/dynamic-bridge-app/zap-generated"
+  is_server = true
+
+  # TODO: the definition of DYNAMIC_ENDPOINT_COUNT needs find a common home!
+  cflags = [ "-DDYNAMIC_ENDPOINT_COUNT=16" ]
+}
+
+if (chip_enable_pw_rpc) {
+  import("//build_overrides/pigweed.gni")
+  import("$dir_pw_protobuf_compiler/proto.gni")
+
+  pw_proto_library("bridge_service") {
+    sources = [ "protos/bridge_service.proto" ]
+    inputs = [ "protos/bridge_service.options" ]
+    strip_prefix = "protos"
+    prefix = "bridge_service"
+  }
+}