ToEnglishWords fixes

Author: ZacharyPatten

README.md

@@ -271,6 +271,8 @@
 > 
 > string ToEnglishWords(this decimal @decimal);
 > // Example: 42 -> "Forty-Two"
+> (bool Success, decimal Value) TryParseEnglishWordsToDecimal(string words);
+> // Example: "Forty-Two" -> 42
 > 
 > int TryParseRomanNumeral(string @string);
 > // Example: "XLII" -> 42

Sources/Towel/Extensions-NumericEnglishWords.cs

@@ -128,6 +128,10 @@ internal static string ToEnglishWords(ReadOnlySpan<char> number)
 					decimalIndex = -1;
 				}
 			}
+			if (number.Length is 0)
+			{
+				return "Zero";
+			}
 			if (decimalIndex is not 0)
 			{
 				ReadOnlySpan<char> wholeNumber = decimalIndex >= 0

Tools/Towel_Testing/Extensions-NumericEnglishWords.cs

@@ -181,6 +181,8 @@ public partial class Extensions_Testing
 
 			(-0.0100m, "Negative One Hundredths"),
 
+			(-0.0000m, "Zero"),
+
 			(decimal.MinValue, "Negative Seventy-Nine Octillion Two Hundred Twenty-Eight Septillion One Hundred Sixty-Two Sextillion Five Hundred Fourteen Quintillion Two Hundred Sixty-Four Quadrillion Three Hundred Thirty-Seven Trillion Five Hundred Ninety-Three Billion Five Hundred Forty-Three Million Nine Hundred Fifty Thousand Three Hundred Thirty-Five"),
 			(decimal.MaxValue, "Seventy-Nine Octillion Two Hundred Twenty-Eight Septillion One Hundred Sixty-Two Sextillion Five Hundred Fourteen Quintillion Two Hundred Sixty-Four Quadrillion Three Hundred Thirty-Seven Trillion Five Hundred Ninety-Three Billion Five Hundred Forty-Three Million Nine Hundred Fifty Thousand Three Hundred Thirty-Five"),
 		};