Sample Manufacturer Extension Cluster (#29162)

* new: chef test custom cluster

* MEI sample cluster. Chef device sample

* renamed some symbols

* fix: sampleMei doesn't need zap-generated command callbacks

* chg: new implementation of cluster supports many endpoints

* chg: zap regen

* chg: removed unused variable captured in closure

* chg: changed %lu to %zu for size_t types

* commands made non-optional. Restyle

* removed reference for availability.yaml

* fix: controller-clusters.zap as a samplemei client cluster, not server

* fix: sample mei command handling on adding, availability.yaml

* chg: replaced %zu to type castings. Lint doesn't like %zu

* fix: removed event list from data model

* fix: event list removed from controller-clusters.zap

* chg: sample mei <code> tag doc

* fix: last bits of controller-clusters.zap got cut when rebased

* chg: zap regen after new zap version installed

* changed MEI to Mei in cluster name

* Restyled by whitespace

* Restyled by clang-format

* Update src/darwin/Framework/CHIP/templates/availability.yaml

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

* Update src/app/zap-templates/zcl/data-model/chip/sample-mei-cluster.xml

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

* Update src/app/clusters/sample-mei-server/sample-mei-server.cpp

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

* capitalized MEI

* chg: cluster added to ClustersWithShutdownFunctions

* chg: included app/util/config.h in sample-mei-server.h

* fix: shutdown calls UnregisterEndpoint

* fix: shutdown calls UnregisterEndpoint

* fix: name of cluster in config-data.yaml

* Restyled by clang-format

* chg: removed dead code

* chg: error codes for r/w

* Restyled by clang-format

* chg: issue number in config-data.yaml

---------

Co-authored-by: Restyled.io <commits@restyled.io>
Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

.github/.wordlist.txt

@@ -849,6 +849,7 @@ MDNS
 MediaInput
 MediaPlayback
 MediaTek
+MEI
 mem
 memdf
 MemMonitoring

.github/workflows/tests.yaml

@@ -180,6 +180,7 @@ jobs:
                       src/app/zap-templates/zcl/data-model/draft/input-output-value-clusters.xml \
                       src/app/zap-templates/zcl/data-model/draft/onoff-switch-configuration-cluster.xml \
                       src/app/zap-templates/zcl/data-model/chip/resource-monitoring-cluster.xml \
+                      src/app/zap-templates/zcl/data-model/chip/sample-mei-cluster.xml \
                     "
             - name: Build Apps
               run: |

examples/chef/README.md

@@ -210,3 +210,30 @@ To add new devices for chef:
     `examples/chef/devices`.
     -   This is gated by the workflow in `.github/workflows/zap_templates.yaml`.
 -   All devices added to the repository are built in CD.
+
+## Manufacturer Extensions / Custom Clusters
+
+You may add vendor-defined features to chef. The
+`rootnode_onofflight_meisample*` device showcases its usage by using the Sample
+MEI cluster which is defined on
+`src/app/zap-templates/zcl/data-model/chip/sample-mei-cluster.xml`
+
+This cluster has
+
+-   One boolean attribute: `flip-flop`
+-   A `ping` command with no arguments
+-   A command/response pair `add-arguments`. The command takes two uint8
+    arguments and the response command returns their sum.
+
+You may test the `Sample MEI` via chip-tool using the following commands:
+
+```
+# commissioning of on-network chef device
+chip-tool pairing onnetwork 1 20202021
+# tests command to sum arguments: returns 30
+chip-tool samplemei add-arguments 1 1 10 20
+# sets Flip-Flop to false
+chip-tool samplemei write flip-flop 0 1 1
+# reads Flip-Flop
+chip-tool samplemei read flip-flop 1 1
+```