Added xml epp console required endpoints and sample xml files

app/controllers/repp/v1/registrar/xml_console_controller.rb

@@ -0,0 +1,55 @@
+module Repp
+  module V1
+    module Registrar
+      class XmlConsoleController < BaseController
+        include EppRequestable
+
+        PREFS = %w[
+          domain-ee
+          contact-ee
+          eis
+          epp-ee
+        ].freeze
+
+        def load_xml
+          cl_trid = "#{current_user.username}-#{Time.zone.now.to_i}"
+          xml_dir_path = Rails.root.join('app/views/epp/sample_requests').to_s
+          xml = File.read("#{xml_dir_path}/#{params[:obj]}/#{params[:epp_action]}.xml")
+          xml = prepare_payload(xml, cl_trid)
+
+          render_success(data: { xml: xml })
+        end
+
+        private
+
+        def prepare_payload(xml, cl_trid)
+          PREFS.map do |pref|
+            xml = load_schema_by_prefix(pref, xml)
+          end
+
+          xml.gsub!('<clTRID>ABC-12345</clTRID>', "<clTRID>#{cl_trid}</clTRID>")
+          xml
+        end
+
+        def load_schema_by_prefix(pref, xml)
+          case pref
+          when 'epp-ee'
+            insert_prefix_and_version(xml, pref, '1.0')
+          when 'eis'
+            insert_prefix_and_version(xml, pref, '1.0')
+          when 'contact-ee'
+            insert_prefix_and_version(xml, pref, '1.1')
+          else
+            insert_prefix_and_version(xml, pref, '1.2')
+          end
+        end
+
+        def insert_prefix_and_version(xml, pref, version)
+          xml.gsub!("\"#{pref}\"",
+                    "\"#{Xsd::Schema.filename(for_prefix: pref.to_s, for_version: version)}\"")
+          xml
+        end
+      end
+    end
+  end
+end