Changed gcis:FigureNumber from xsd:float to xsd:string

Changed gcis:tableNumber from xsd:float to xsd:string

changed gcis:findingNumber from xsd:float to xsd:string

Changed figureNumber, tableNumber, and findingNumber from float to string
Merge pull request #43 from justgo129/master

Changed gcis:FigureNumber from xsd:float to xsd:string