Implementation of global find and replace functionality on TouchUI (AEMasCS)

[#1]

Request for Feature Enhancement (RFE) Summary:	Implementation of global find and replace functionality on TouchUI (AEMasCS)
Use-case:	Globally search & replace contents to helps during situation incorrect migration, Batch modification of content, clean up junk data injected from various Adblock browser plugins.
Current/Experienced Behavior:	Not Implemented in AEMasCS but this feature was there in classic UI. AEM 6.5(previous version)
Improved/Expected Behavior:	Globally search & replace contents on AEMasCS
Environment Details (AEM version/service pack, any other specifics if applicable):	AEMasCS
Customer-name/Organization name:	Raja.T
Screenshot (if applicable):	Screenshot of AEM 6.5(previous version)
Code package (if applicable):	com.day.cq.wcm.core com.day.cq.wcm.core.impl.servlets Servlet Name:  FindReplaceServlet.java