feat: phrase corrections: like a plague, have went, case and point, aswell

[hippietrail]

Issues

N/A

Description

Another odd variant I heard for the first time today which is actually already pretty common.
Dictionaries say we avoid something "like the plague" but younger speakers have been avoiding things "like a plague".

• https://dictionary.cambridge.org/dictionary/english/avoid-like-the-plague
• https://www.collinsdictionary.com/dictionary/english/avoid-someone-or-something-like-the-plague
• https://www.oxfordlearnersdictionaries.com/definition/english/avoid#avoid_idmg_1
• https://www.merriam-webster.com/wordplay/avoid-like-the-plague-origin

I added another set of phrase corrections to this PR. Correcting the simple past tense form used to construct the perfect tenses of "to go"

• have went → have gone
• had went → had gone
• having went → having gone

How Has This Been Tested?

I added a unit test for each one based on an example sentence plucked from GitHub.

Note that there are false positives for "having went" but these have not been addressed.

Later I remembered an old one I noticed a few years ago:

• case and point → case in point

I added a unit test for it based on text found on GitHub too.

False positives may turn up for this one as well I think.

And once more:

• aswell → as well

Also with a GitHub-based unit test.

Checklist

• I have performed a self-review of my own code
• I have added tests to cover my changes