[File Connector][moveFolder]It replaces the destination folder content

[isuruuy429]

Description:
When we want to move a source folder to the destination folder, it replaces all the content in the destination folder and move the content in the source folder, but not the folder.
It first deletes all the content in the destination folder. Then tries to move whatever the content in the source folder.

Steps to reproduce:

1. Create the following API in the Integration Studio.

<?xml version="1.0" encoding="UTF-8"?>
<api context="/file" name="File" xmlns="http://ws.apache.org/ns/synapse">
  <resource methods="POST" uri-template="/move">
        <inSequence>
            <property expression="json-eval($.source)" name="source" scope="default" type="STRING"/>
            <property expression="json-eval($.destination)" name="destination" scope="default" type="STRING"/>
            <fileconnector.move>
                <source>{$ctx:source}</source>
                <destination>{$ctx:destination}</destination>
            </fileconnector.move>
            <respond/>
        </inSequence>
        <outSequence/>
        <faultSequence/>
    </resource>
</api>

2. Invoke the API with a relevant payload as below.

{
	"source":"/Users/IsuruUyanage/Music/integration-tests",
	"destination":"/Users/IsuruUyanage/Music/iTunes"
}

Expected: It is expected to move the integration tests folder to the iTunes folder without replacing anything.
Actual: It replaces all the files in the iTunes folder and just moves the content of the integration-tests to the iTunes folder. Not the whole integration-tests folder.