Adds examples for hiding sheets and workbook view
Adds examples for hiding sheets and workbook view

These examples show using hidden and very hidden to manage
worksheet visibility as well as using the active_tab
attribute of a workbook#view in order to specify which
tab should be showing when the sheet is opened.

romuloceccon/axlsx,kappiah/axlsx,sh-ft/axlsx,sr-education/axlsx,bradstewart/axlsx,alexanderfrankel/axlsx,pedrogarrett/axlsx,mromulus/axlsx,legitscript/axlsx,raghavendra-prithvi/axlsx,clarkcutler/axlsx,woto/axlsx,VueOps/axlsx,Debiancc/axlsx,randym/axlsx