[rust] Feature 11688 custom cache path

[iampopovich]

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Description

according to request #11688 I've added a config file to store the custom path to the cache folder. it may contain any other custom paths on demand

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[bonigarcia]

All the logic related to const STORAGE_CONFIG_FILE: &str = ".selenium-files.json"; should not be in this PR. The configuration file is already implemented in other PR (see #11810).

[iampopovich]

@bonigarcia thanks
I’ll use implemented configuration in #11810 and let you know