updated importlib.resources to stop using deprecated path function

[azaidi06]

Fixes

This resolves issue #1542

Summary/Motivation:

importlib.resources.path is deprecated and importlib.resources.files is the remedy for all python version applicable in IDAES (3.9+)

Changes proposed in this PR:

updated importlib.resrouces functionality to now use "files" function instead of "path"

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