feat: Add support for raw schema name replacement rules in configuration

[Sadhorsephile]

Why

Sometimes swagger parameter names may contain inappropriate characters for Dart method parameter names (e.g. filters[name]). This leads to generated code with invalid parameter names:

@Query('filter[name]') String object1,

Solution

Additional replacement rules that will be applied to parameter names during method generation can solve this issue.

Usage

swagger_parser.yaml:

...
  replacement_rules_for_raw_schema:
   - pattern: "\\]\\["
     replacement: "_"
   - pattern: "\\[]\\["
     replacement: "_"
   - pattern: "\\["
     replacement: "_"
   - pattern: "\\]"
     replacement: "_"

Before	After
Future<ItemsPaginationResponse> getSomeItems({ @Query('filters[name]') required String object1, @Query('filters[weight]') int? object2, @Query('filters[width]') int? object3, @Query('filters[height]') String? object4, @Query('filters[year]') int? object5, });	Future<ItemsPaginationResponse> getSomeItems({ @Query('filters[name]') required String filtersname, @Query('filters[weight]') int? filtersweight, @Query('filters[width]') int? filterswidth, @Query('filters[height]') String? filtersheight, @Query('filters[year]') int? filtersyear, });

This is not an ideal solution, but definitely improves readability of generated methods. I will also be glad to get better solution just to solve this issue.

[Carapacik]

Very good

[Carapacik]

@Sadhorsephile please increase version and add changelog and example to readme

[Sadhorsephile]

@Carapacik, done. I've already added example to readme before. Tell me if this isn't enough.