Backward compatible upgrade to fix deprecation warnings concerning LooseVersion and pkg_resources for Python3.8+

[Daraan]

Description

distutils LooseVersion and pkg_resources are deprecated and not available in later python versions. This introduces two commits fixing these deprecation for Python3.8+ while maintaining functionality for Python3.7 and before.

NOTE: Reverting the second commit removes the backward compatibility to Python3.7, as importlib.metadata is introduced in Python3.8.

Fixes #

Where has this been tested?

• Platform(s): Ubuntu 22.04
• Python version(s): 3.7, 3.8, 3.10
• Unreal Engine version(s): 4.26
• CARLA version: 0.9.14 (fails as expected), 0.9.15

Possible Drawbacks

The second commit bloats the code a bit and should be reverted when python3.7 should not be supported anymore removing pkg_resources entirely.

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This change is 

[glopezdiest]

Approved, nice deprecation check