Removed image picker field from package - moved to own package. Fixes #645

Author: danvick

example/lib/sources/complete_form.dart

@@ -408,12 +408,6 @@ class CompleteFormState extends State<CompleteForm> {
                     border: Border.all(color: Colors.green),
                     onChanged: _onChanged,
                   ),
-                  FormBuilderImagePicker(
-                    name: 'photos',
-                    decoration: const InputDecoration(labelText: 'Pick Photos'),
-                    maxImages: 1,
-                  ),
-                  const SizedBox(height: 15),
                 ],
               ),
             ),

lib/flutter_form_builder.dart

@@ -15,7 +15,6 @@ export './src/fields/form_builder_date_range_picker.dart';
 export './src/fields/form_builder_date_time_picker.dart';
 export './src/fields/form_builder_dropdown.dart';
 export './src/fields/form_builder_filter_chips.dart';
-export './src/fields/form_builder_image_picker.dart';
 export './src/fields/form_builder_radio_group.dart';
 export './src/fields/form_builder_range_slider.dart';
 export './src/fields/form_builder_rating.dart';

lib/src/fields/form_builder_image_picker.dart

@@ -21,8 +21,6 @@ dependencies:
   flutter_datetime_picker: ^1.4.0
   flutter_touch_spin: ^1.0.1
   flutter_typeahead: ^1.9.1
-  image_picker: ^0.6.7+17
-  image_picker_for_web: ^0.1.0+2
   intl: ^0.16.1
   rating_bar: ^0.2.0
   signature: ^3.2.0