Add version.txt

[bleonard252]

Description

This adds a simple file where the last "term" (separated by spaces) on a line is the version of the component listed, such as dahliaOS. This is to allow things to see if they are running on dahliaOS and to use our configuration, file paths, etc.

Type of change

Please tick the relevant option by putting an X inside the bracket

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] This change requires a documentation update to remind Noah to set this with each release, and also for how to read it

How was this tested?

• It is literally a text file, I don't think this needs to be tested

Test Configuration:

• dahliaOS Build number: N/A
• Hardware: N/A
• VM: N/A

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [x] I have checked my code and corrected any misspellings

(I'm not sure how much of this applies, since we don't use tests, and this is not code.....)