Add matter hello world snap for spread test

tests/spread/plugins/craft-parts/build-and-run-hello/matter-hello/README.md

@@ -0,0 +1,10 @@
+# matter_hello
+
+A new Matter project.
+
+## Getting Started
+
+This project is a starting point for a Matter application.
+
+For help getting started with Matter development, view the
+[Matter SDK](https://github.com/project-chip/connectedhomeip).

tests/spread/plugins/craft-parts/build-and-run-hello/matter-hello/hello

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo "hello world"

tests/spread/plugins/craft-parts/build-and-run-hello/matter-hello/snap/snapcraft.yaml

@@ -0,0 +1,20 @@
+name: matter-hello
+version: "1.0"
+summary: simple matter application
+description: build an application using Matter SDK and say "hello world"
+base: core22
+confinement: strict
+
+apps:
+  hello:
+    command: 
+      hello
+
+parts:
+  matter:
+    plugin: matter
+    matter-sdk-version: "master"
+    matter-zap-version: "v2023.11.13"
+  hello:
+    plugin: dump
+    source: .

tests/spread/plugins/craft-parts/build-and-run-hello/task.yaml

@@ -7,6 +7,7 @@ environment:
   SNAP/colcon_ros2_humble: colcon-ros2-humble-hello
   SNAP/colcon_ros2_wrapper: colcon-ros2-wrapper
   SNAP/flutter: flutter-hello
+  SNAP/matter: matter-hello
   SNAP/python: python-hello
 
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