Support multi-endpoint window covering

[HunsupJung]

Type of Change

• WWST Certification Request
  • If this is your first time contributing code:
    • I have reviewed the README.md file
    • I have reviewed the CODE_OF_CONDUCT.md file
    • I have signed the CLA
  • I plan on entering a WWST Certification Request or have entered a request through the WWST Certification console at developer.smartthings.com
• Bug fix
• New feature
• Refactor

Checklist

• I have performed a self-review of my code
• I have commented my code in hard-to-understand areas
• I have verified my changes by testing with a device or have communicated a plan for testing
• I am adding new behavior, such as adding a sub-driver, and have added and run new unit tests to cover the new behavior

Description of Change

Summary of Completed Tests

[github-actions]

Invitation URL:
https://bestow-regional.api.smartthings.com/invite/d4291LqvED2o

[github-actions]

Test Results

   73 files    541 suites   0s ⏱️
3 258 tests 3 258 ✅ 0 💤 0 ❌
5 247 runs  5 247 ✅ 0 💤 0 ❌

Results for commit 04ec853.

♻️ This comment has been updated with latest results.

[github-actions]

matter-window-covering_coverage.xml

File	Coverage
All files	83%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/sub_drivers/closure/init.lua	78%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/lazy_load_subdriver.lua	57%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/init.lua	80%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/sub_drivers/closure/closure_handlers/capability_handlers.lua	73%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/sub_drivers/closure/closure_handlers/attribute_handlers.lua	86%	❌
/home/runner/work/SmartThingsEdgeDrivers/SmartThingsEdgeDrivers/drivers/SmartThings/matter-window-covering/src/sub_drivers/closure/closure_utils/utils.lua	91%	✅

Minimum allowed coverage is 90%

Generated by 🐒 cobertura-action against 04ec853