Migration from ERPNext CRM to Frappe CRM

[nitun]

We will do the reverse migration → Instead of mapping FCRM tables with ERPNext CRM, we will use existing FCRM tables (doctypes and fields). Migrate the existing data from ERPNext CRM + Next CRM to FCRM.

• Implement features that are must-haves for rtCamp’s sales team.
• Use the FCRM latest develop branch maybe 2.0.0 develop → We can't use this develop branch with v 2.0.0 as it does not support Frappe Cloud.
• Once everything is done, final testing will happen and showcase the demo and walkthrough to the sales team.
• Deprecate the Next CRM repo add notice of deprecation, and redirect users to the new app.
• Another app will be created with the name “ERPNext-CRM-to-Frappe-CRM migration”. This will be a public repo → People can use it for the migration.