static getCharacterSetECIByName(name) {
			const characterSet = CharacterSetECI.NAME_TO_ECI.get(name);
			if (undefined === characterSet) {
				throw new FormatException('incorect value');
			}
			return characterSet;
		}
@param name character set ECI encoding name
@return CharacterSetECI representing ECI for character encoding, or null if it is legal
  but unsupported