Suggestion for enhance function readExistingPackageXML

[nguyenmht]

Hi Vignaesh,

I have a suggestion for enhance function readExistingPackageXML of your awesome extension.

Current: When I have a package.xml with more than one block of a type (ex: Flow), function readExistingPackageXML will identify only the lasted block and ignore the others.

Future: I think we should combine all element in all block have the same type and de-duplicate them.

So I made a change in your code and it works for me.
Change code in around line 686 from:
mpExistingPackageXML[name] = members;
to

                        if(mpExistingPackageXML[name] !== undefined) {
                            mpExistingPackageXML[name].push(...members);
                        } else {
                            mpExistingPackageXML[name] = members;
                        }
                        mpExistingPackageXML[name] = [...new Set(mpExistingPackageXML[name])];

Result:

• Before:
  
• After:
  

Can you take a look in this suggestion.
Thank you very much for your extension!