[#492][CRUD] Add the index view templates to the generator

.template/addons/crud/lib/template.rb

@@ -1,20 +1,13 @@
 # frozen_string_literal: true
 
+require File.expand_path('../../../lib/thor_utils', __dir__)
+
+use_source_path __dir__
+
 def copy_template_files
-  ignore_tt do
+  ::ThorUtils.ignore_tt do
     directory 'lib/templates', renderTemplates: false
   end
 end
 
-def ignore_tt
-  # NOTE: change template extension so it would skip
-  #       `when /#{TEMPLATE_EXTNAME}$/` condition and
-  #        fallback to default `copy_file`
-  Thor::TEMPLATE_EXTNAME.concat '_no_match' # => .tt_no_match
-  yield
-ensure
-  # NOTE: make sure to undo our dirty work after the block
-  Thor::TEMPLATE_EXTNAME.chomp! '_no_match' # => .tt
-end
-
 copy_template_files

.template/lib/thor_utils.rb

@@ -0,0 +1,12 @@
+class ThorUtils
+  def self.ignore_tt
+    # NOTE: change template extension so it would skip
+    #       `when /#{TEMPLATE_EXTNAME}$/` condition and
+    #        fallback to default `copy_file`
+    Thor::TEMPLATE_EXTNAME.concat '_no_match' # => .tt_no_match
+    yield
+  ensure
+    # NOTE: make sure to undo our dirty work after the block
+    Thor::TEMPLATE_EXTNAME.chomp! '_no_match' # => .tt
+  end
+end