Add a bunch of single byte charset recognizers

Author: saintfish

detector.go

@@ -22,6 +22,44 @@ var recognizers = []recognizer{
 	new(recognizerUtf16le),
 	newRecognizerUtf32be(),
 	newRecognizerUtf32le(),
+	newRecognizer_8859_1_en(),
+	newRecognizer_8859_1_da(),
+	newRecognizer_8859_1_de(),
+	newRecognizer_8859_1_es(),
+	newRecognizer_8859_1_fr(),
+	newRecognizer_8859_1_it(),
+	newRecognizer_8859_1_nl(),
+	newRecognizer_8859_1_no(),
+	newRecognizer_8859_1_pt(),
+	newRecognizer_8859_1_sv(),
+	newRecognizer_8859_2_cs(),
+	newRecognizer_8859_2_hu(),
+	newRecognizer_8859_2_pl(),
+	newRecognizer_8859_2_ro(),
+	newRecognizer_8859_5_ru(),
+	newRecognizer_8859_6_ar(),
+	newRecognizer_8859_7_el(),
+	newRecognizer_8859_8_I_he(),
+	newRecognizer_8859_8_he(),
+	newRecognizer_windows_1251(),
+	newRecognizer_windows_1256(),
+	newRecognizer_KOI8_R(),
+	newRecognizer_8859_9_tr(),
+
+	// newRecognizer_sjis(),
+	// newRecognizer_gb_18030(),
+	// newRecognizer_euc_jp(),
+	// newRecognizer_euc_kr(),
+	// newRecognizer_big5(),
+
+	// newRecognizer_2022JP(),
+	// newRecognizer_2022KR(),
+	// newRecognizer_2022CN(),
+
+	newRecognizer_IBM424_he_rtl(),
+	newRecognizer_IBM424_he_ltr(),
+	newRecognizer_IBM420_ar_rtl(),
+	newRecognizer_IBM420_ar_ltr(),
 }
 
 func NewDetector() *Detector {