Add find and replace samples#293

VijayadharshiniMathiyalagan wants to merge 4 commits intoSyncfusionExamples:mainSyncfusionExamples/DocIO-Examples:mainfrom

VijayadharshiniMathiyalagan:ES-883097-Add-subtopic-in-UG-for-find-match-case-whole-words-in-Find-and-replace-pageVijayadharshiniMathiyalagan/DocIO-Examples:ES-883097-Add-subtopic-in-UG-for-find-match-case-whole-words-in-Find-and-replace-pageCopy head branch name to clipboard