ADD create licensce and ignore service

app/services/generate_db_service.rb

@@ -0,0 +1,18 @@
+class GenerateDbService
+  def initialize
+  end
+
+  def self.call(dir_url, key)
+    if File::directory? dir_url
+      Dir.entries(dir_url).each { |sub|
+        if sub != '.' && sub != '..'
+          puts "#{key} name: #{sub}"
+          file_path = File.join(dir_url, sub)
+          puts "#{key} path: #{file_path}"
+          file_content = File.read(file_path)
+          key.classify.constantize.find_or_create_by(name: sub, content: file_content)
+        end
+      }
+    end
+  end
+end