fix #415: [EN] Support 'named-after' template

[lasconic]

• Fixes [EN] Support all "form-of" templates #415
• Tests added/updated.
• ./check.sh run and eventual issues fixed.
• Updated CONTRIBUTORS.md, if not already done in the past.

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 0.28%.

Quality metrics	Before	After	Change
Complexity	374.70 ⛔	395.71 ⛔	21.01 👎
Method Length	521.80 ⛔	550.60 ⛔	28.80 👎
Working memory	36.39 ⛔	37.41 ⛔	1.02 👎
Quality	5.13% ⛔	4.85% ⛔	-0.28% 👎

Other metrics	Before	After	Change
Lines	858	890	32

Changed files	Quality Before	Quality After	Quality Change
scripts/lang/en/init.py	5.13% ⛔	4.85% ⛔	-0.28% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
scripts/lang/en/init.py	last_template_handler	441 ⛔	2412 ⛔	40 ⛔	0.18% ⛔	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
scripts/lang/en/init.py	join_names	38 ⛔	161 😞	16 ⛔	25.65% 😞	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
scripts/lang/en/init.py	add_dash	6 ⭐	54 ⭐	10 😞	69.91% 🙂	Extract out complex expressions

Legend and Explanation

The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

---

Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Let us know what you think of it by mentioning @sourcery-ai in a comment.