message: added new props
diff: @@ -1853,6 +1853,7 @@ declare namespace PptxGenJS {
  catAxisLabelColor?: string
  catAxisLabelFontBold?: boolean
  catAxisLabelFontFace?: string
  + catAxisLabelFontItalic?: boolean
  catAxisLabelFontSize?: number
  catAxisLabelFrequency?: string
  catAxisLabelPos?: 'none' | 'low' | 'high' | 'nextTo'
  @@ -1888,10 +1889,13 @@ declare namespace PptxGenJS {
  serAxisBaseTimeUnit?: string
  serAxisHidden?: boolean
  serAxisLabelColor?: string
  + serAxisLabelFontBold?: boolean
  serAxisLabelFontFace?: string
  + serAxisLabelFontItalic?: boolean
  serAxisLabelFontSize?: number
  serAxisLabelFrequency?: string
  serAxisLabelPos?: 'none' | 'low' | 'high' | 'nextTo'
  + serAxisLineColor?: string
  serAxisLineShow?: boolean
  serAxisMajorTimeUnit?: string
  serAxisMajorUnit?: number
  @@ -1925,6 +1929,7 @@ declare namespace PptxGenJS {
  valAxisLabelColor?: string
  valAxisLabelFontBold?: boolean
  valAxisLabelFontFace?: string
  + valAxisLabelFontItalic?: boolean
  valAxisLabelFontSize?: number
  valAxisLabelFormatCode?: string
  valAxisLabelPos?: 'none' | 'low' | 'high' | 'nextTo'
  @@ -2000,6 +2005,7 @@ declare namespace PptxGenJS {
  dataLabelColor?: string
  dataLabelFontBold?: boolean
  dataLabelFontFace?: string
  + dataLabelFontItalic?: boolean
  dataLabelFontSize?: number
  /**
  * Data label format code
  