Allow trimming of all characters inside quotes

[i2van]

Sync with JoshClose/CsvHelper#1913

Test file can be found at JoshClose/CsvHelper#1782 (comment)

Remove:

CsvLINQPadDriver/Src/CsvLINQPadDriver/Extensions/FileExtensions.cs

Lines 530 to 534 in cbbeb22

	var whiteSpaceChars = WhiteSpaceChars
	.Except(csvConfiguration.Delimiter.Length == 1
	? new[] { csvConfiguration.Delimiter.First() }
	: Array.Empty<char>())
	.ToArray();