Task#338 chore: Ability to select the Cluster before importing UCM Data

[pravinTek]

Problem:
Adding Cluster name for each in a row in the CSV will be a difficult task. User may make spell mistakes while adding Cluster name.

Expectation:
As a Site User, I should be able to see the Cluster Dropdown & import that data against the selected Cluster.

Steps for Implementation

Add configuration at UCM type level as 'Import By Cluster' with 'Yes' & 'No' values
The default value should be No.
Based on cluster extension install/exist this will appear in UCM type creation form (backend)
Using this configuration bring a cluster selector on the import window
To display logged-in user cluster list in that dropdown
Add check before uploading csv by using import feature as cluster selected or not if required(Means if a configuration is enabled)
Need to Remove the cluster field column from exported CSV (sample file)
Need to modify the file upload save logic