Changes in naming for easy maintainability and understanding

Author: danvick

lib/flutter_form_builder.dart

@@ -4,17 +4,17 @@ export './src/form_builder.dart';
 export './src/form_builder_custom_field.dart';
 export './src/form_builder_field_option.dart';
 export './src/form_builder_validators.dart';
-export './src/inputs/form_builder_checkbox.dart';
-export './src/inputs/form_builder_checkbox_list.dart';
-export './src/inputs/form_builder_date_time_picker.dart';
-export './src/inputs/form_builder_dropdown.dart';
-export './src/inputs/form_builder_radio.dart';
-export './src/inputs/form_builder_rate.dart';
-export './src/inputs/form_builder_segmented_control.dart';
-export './src/inputs/form_builder_slider.dart';
-export './src/inputs/form_builder_stepper.dart';
-export './src/inputs/form_builder_switch.dart';
-export './src/inputs/form_builder_text_field.dart';
-export './src/inputs/form_builder_typeahead.dart';
-export './src/inputs/form_builder_chips_input.dart';
-export './src/inputs/form_builder_signature_pad.dart';
+export './src/fields/form_builder_checkbox.dart';
+export './src/fields/form_builder_checkbox_list.dart';
+export './src/fields/form_builder_date_time_picker.dart';
+export './src/fields/form_builder_dropdown.dart';
+export './src/fields/form_builder_radio.dart';
+export './src/fields/form_builder_rate.dart';
+export './src/fields/form_builder_segmented_control.dart';
+export './src/fields/form_builder_slider.dart';
+export './src/fields/form_builder_stepper.dart';
+export './src/fields/form_builder_switch.dart';
+export './src/fields/form_builder_text_field.dart';
+export './src/fields/form_builder_typeahead.dart';
+export './src/fields/form_builder_chips_input.dart';
+export './src/fields/form_builder_signature_pad.dart';