Add multiple locale support

[swissspidy]

To-do:

• Demonstrate performance difference somehow, maybe using PHPBench?
• More tests for edge cases

Fixes #3

[codecov]

Codecov Report

Merging #4 (462e5df) into main (7fdd928) will increase coverage by 0.70%.
The diff coverage is 97.36%.

@@             Coverage Diff              @@
##               main       #4      +/-   ##
============================================
+ Coverage     91.13%   91.83%   +0.70%     
- Complexity      165      181      +16     
============================================
  Files             7        7              
  Lines           406      441      +35     
============================================
+ Hits            370      405      +35     
  Misses           36       36              

Flag	Coverage Δ
default	91.83% <97.36%> (+0.70%)	⬆️
multisite	20.40% <15.78%> (-0.29%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
lib/class-ginger-mo.php	96.77% <96.82%> (-0.11%)	⬇️
...ib/class-ginger-mo-translation-compat-provider.php	91.42% <100.00%> (ø)
lib/class-ginger-mo-translation-compat.php	95.34% <100.00%> (+3.68%)	⬆️
lib/class-ginger-mo-translation-file.php	81.53% <100.00%> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[swissspidy]

Performance Test Results

Performance test results for bdf1864 are in 🛎️!

WordPress Admin

Locale	Scenario	wp-memory-usage	wp-total
en_US	Default	15.71 MB	188.62 ms
de_DE	Default	32.30 MB	248.90 ms
de_DE	Ginger MO (MO)	20.34 MB	220.12 ms
de_DE	Ginger MO (PHP)	17.32 MB	200.28 ms
de_DE	Ginger MO (JSON)	20.33 MB	217.41 ms

Twenty Twenty-Three

Locale	Scenario	wp-memory-usage	wp-total
en_US	Default	14.85 MB	160.26 ms
de_DE	Default	28.28 MB	213.62 ms
de_DE	Ginger MO (MO)	18.30 MB	197.69 ms
de_DE	Ginger MO (PHP)	16.02 MB	170.65 ms
de_DE	Ginger MO (JSON)	18.29 MB	191.74 ms

Twenty Twenty-One

Locale	Scenario	wp-memory-usage	wp-total
en_US	Default	14.45 MB	145.49 ms
de_DE	Default	27.94 MB	204.14 ms
de_DE	Ginger MO (MO)	17.91 MB	176.65 ms
de_DE	Ginger MO (PHP)	15.62 MB	152.68 ms
de_DE	Ginger MO (JSON)	17.91 MB	172.07 ms