Hover when writing XSDs

[fbricon]

follow up on #111. Completion now works but hover doesn't on any of the nodes or attributes of an xsd document. Ex:

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xs:complexType name="property">
        <xs:attribute name="name" type="xs:string" />
        <xs:attribute name="value" type="xs:string" />
    </xs:complexType>

    <xs:complexType name="resource">
        <xs:sequence>
            <xs:element name="property" type="property" minOccurs="0" maxOccurs="unbounded" />
        </xs:sequence>
        <xs:attribute name="name" type="xs:string" use="required" />
    </xs:complexType>

    <xs:element name="resources">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="resource" type="resource" minOccurs="0" maxOccurs="unbounded" />
            </xs:sequence>
            <xs:attribute name="variant" type="xs:string" use="required"/>
        </xs:complexType>
    </xs:element>
</xs:schema>

[angelozerr]

Which hover do you want to hav ein this case? Like WTP which shows the content model?