Fix for two bugs related to Unicode translation support by Font objects #577

Job	Run time
PHPUnit Composer v2 (PHP 7.4)	32s
PHPUnit (PHP 7.2)	32s
PHPUnit coverage (PHP 7.4)	1m 17s
PHPUnit (PHP 7.1)	44s
PHPUnit (PHP 7.3)	32s
PHPUnit (PHP 7.4)	38s
PHPUnit (PHP 8.0)	26s
Tests alternative autoloader (PHP 7.1)	6s
PHPUnit (PHP 8.1)	33s
Tests alternative autoloader (PHP 7.2)	15s
PHPUnit (PHP 8.2)	28s
Tests alternative autoloader (PHP 7.3)	8s
PHPUnit (PHP 8.3)	28s
Tests alternative autoloader (PHP 7.4)	6s
Tests alternative autoloader (PHP 8.0)	7s
Tests alternative autoloader (PHP 8.1)	15s
PHPUnit lowest deps (PHP 7.3)	27s
Tests alternative autoloader (PHP 8.2)	11s
Tests alternative autoloader (PHP 8.3)	5s
Windows-Tests with PHP 7.1	1m 8s
Windows-Tests with PHP 7.2	1m 0s
Windows-Tests with PHP 7.3	53s
Windows-Tests with PHP 7.4	59s
Windows-Tests with PHP 8.0	49s
Windows-Tests with PHP 8.1	54s
Windows-Tests with PHP 8.2	51s
Windows-Tests with PHP 8.3	54s
	15m 18s

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