File rename of KReport source to CamelCase with KReport prefix.
Let's plan the renames carefully, not all names are obvious.
Used Doxygen to make this list:
```
_ext3of9map
BoundedTextItem
code128
code3of9
DesignerWindow
DetailGroupSectionDialog
ElementsTest
FormatTest
HorizontalDistancesPaintingStrategy
HorizontalPaintingStrategy
KoOdtFrameReportCheckBox
KoOdtFrameReportDocument
KoOdtFrameReportImage
KoOdtFrameReportLine
KoOdtFrameReportPicture
KoOdtFrameReportPrimitive
KoOdtFrameReportRenderer
KoOdtFrameReportTextBox
KoReportASyncItemBase
KoReportASyncItemManager
KoReportBarcodePlugin
KoReportChartPlugin
KoReportCheckPlugin
KoReportData
KoReportDesigner
KoReportDesignerItemBarcode
KoReportDesignerItemBase
KoReportDesignerItemChart
KoReportDesignerItemCheck
KoReportDesignerItemField
KoReportDesignerItemImage
KoReportDesignerItemLabel
KoReportDesignerItemLine
KoReportDesignerItemMaps
KoReportDesignerItemRectBase
KoReportDesignerItemText
KoReportDesignerItemWeb
KoReportFieldPlugin
KoReportHTMLCSSRenderer
KoReportHTMLTableRenderer
KoReportImagePlugin
KoReportItemBarcode
KoReportItemBase
KoReportItemChart
KoReportItemCheck
KoReportItemField
KoReportItemImage
KoReportItemLabel
KoReportItemLine
KoReportItemMaps
KoReportItemText
KoReportItemWeb
KoReportKSpreadRenderer
KoReportLabelPlugin
KoReportMapsPlugin
KoReportODTRenderer
KoReportPage
KoReportPluginInterface
KoReportPluginManager
KoReportPreRenderer
KoReportPreRendererPrivate
KoReportPrintRenderer
KoReportRendererBase
KoReportRendererContext
KoReportRendererFactory
KoReportReportData
KoReportScreenRenderer
KoReportTextPlugin
KoReportWebPlugin
KoSimpleOdsCell
KoSimpleOdsDocument
KoSimpleOdsSheet
KRDetailSectionData
KReportDesign
KReportDesignGlobal
KReportDesignReadingStatus
KReportDpiSingleton
KReportElement
KReportExampleData
KReportGroupTracker
KReportJsonTrader
KReportLabelElement
KReportLineStyle
KReportOneRecordData
KReportPluginEntry
KReportPluginManagerSingleton
KReportPluginMetaData
KReportRuler
KReportRulerPrivate
KReportSection
KReportUnit
KReportView
KReportZoomHandler
KReportZoomMode
KRLineStyleData
KRPos
KRScriptConstants
KRScriptDebug
KRScriptDraw
KRSectionData
KRSize
KRTextStyleData
LabelSizeInfo
MapRenderer
ORDetailGroupSectionData
OROCheck
ORODocument
OROEllipse
OROImage
OROLine
OROPage
OROPicture
OROPrimitive
ORORect
OROSection
OROTextBox
PageFormatInfo
PageIds
PaintingStrategy
PluginsTest
RenderData
ReportPageOptions
ReportPropertiesButton
ReportResizeBar
ReportScene
ReportSceneView
ReportSection
ReportSectionDetail
ReportSectionDetailGroup
ReportSectionTitle
ReportWriterSectionData
RulerTabChooser
SectionEditor
VerticalPaintingStrategy
Window
```