The list needs rework

[ue71603]

• control is poorly defined
• also the other definitions are not clear
• perhaps we need more values

A short discussion is warranted before I do a PR:

	<xsd:simpleType name="GroupOfLinesTypeEnumeration">
		<xsd:annotation>
			<xsd:documentation>Allowed values Classification of GROUP of LINEs. +v1.1</xsd:documentation>
		</xsd:annotation>
		<xsd:restriction base="xsd:string">
			<xsd:enumeration value="marketing">
				<xsd:annotation>
					<xsd:documentation>Grouping is primarily for marketing purposes.</xsd:documentation>
				</xsd:annotation>
			</xsd:enumeration>
			<xsd:enumeration value="administrative">
				<xsd:annotation>
					<xsd:documentation>Grouping is primarily for administrative purposes..</xsd:documentation>
				</xsd:annotation>
			</xsd:enumeration>
			<xsd:enumeration value="scheduling">
				<xsd:annotation>
					<xsd:documentation>Grouping is primarily for creating schedules purposes.</xsd:documentation>
				</xsd:annotation>
			</xsd:enumeration>
			<xsd:enumeration value="control">
				<xsd:annotation>
					<xsd:documentation>Grouping is primarily for defining tariff scope.</xsd:documentation>
				</xsd:annotation>
			</xsd:enumeration>
			<xsd:enumeration value="tariff">
				<xsd:annotation>
					<xsd:documentation>Grouping is primarily for defining tariff scope.</xsd:documentation>
				</xsd:annotation>
			</xsd:enumeration>
			<xsd:enumeration value="other"/>
		</xsd:restriction>
	</xsd:simpleType>