[java] Deprecate all 'lift style' code

[joerg1985]

Description

As suggested in the tlc Slack channel, this is the proposal to deprecate all 'lift style' related code.
I think this should be removed in Selenium 5 if the community is okay with it.

Motivation and Context

• This code has not been updated for one decade, except for refactoring.
• I could not find anything online, only the selenium wiki entry from 2015
• The wiki states: This is very much work in progress at the moment, ...
• The code is based on the JUnit4 dependency and the TestCase style is based on JUnit3
• There is an extra jar generated which seens not to be in use

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.

[titusfortner]

So yeah, this code is from WebDriver before it merged with Selenium.
Looks like they were created and added to by one person in 2008 & 2009, and have only been moved and had various formatting changes since then.
I don't even think we need to wait for Selenium 5; should be fine with the normal 2 releases then remove. If someone complains we can spin it off. 😆

[diemol]

This makes sense, thank you @joerg1985!