lestarch: adds version to help for traceability

[LeStarch]

Originating Project/Creator
Affected Component
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Has Unit Tests (y/n)
Builds Without Errors (y/n)
Unit Tests Pass (y/n)
Documentation Included (y/n)

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Change Description

Puts the tool version number into the help message(s). That way users can trace help in the same way that the FPP tools do. This is for traceability and removes the need to do pip freeze to get the version.

[LeStarch]

Also cleaned up the internal (redundant) import of pkg_tools

[LeStarch]

Got approval for code, changes since were formatting and CI fixing. Merging.