Add initial implementation of Docker Compose manager and example usage

- Introduced DockerComposeManager class for programmatically creating and managing Docker Compose YAML files.
- Added example script demonstrating usage of DockerComposeManager.
- Created tests for service creation, modification, and removal.
- Included project metadata in pyproject.toml and added linting instructions in copilot-instructions.md.

pyproject.toml

@@ -0,0 +1,14 @@
+[project]
+name = "compose"
+version = "0.1.0"
+description = "A simple Python package for managing Docker Compose files"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "pytest>=8.4.0",
+    "pyyaml>=6.0.2",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"