Reorganised ObjectBox backend into own directory

Author: JaffaKetchup

lib/src/backend/export_external.dart

@@ -2,8 +2,8 @@
 // A full license can be found at .\LICENSE
 
 export 'errors/errors.dart';
-export 'impls/web_noop/backend.dart'
-    if (dart.library.ffi) 'impls/objectbox/backend/backend.dart';
+export 'impls/objectbox/web_noop/backend.dart'
+    if (dart.library.ffi) 'impls/objectbox/native/backend/backend.dart';
 export 'interfaces/backend/backend.dart';
 export 'interfaces/backend/internal.dart';
 export 'interfaces/backend/internal_thread_safe.dart';

lib/src/backend/impls/objectbox/backend/backend.dart renamed to lib/src/backend/impls/objectbox/native/backend/backend.dart

@@ -15,9 +15,9 @@ import 'package:meta/meta.dart';
 import 'package:path/path.dart' as path;
 import 'package:path_provider/path_provider.dart';
 
-import '../../../../../flutter_map_tile_caching.dart';
-import '../../../../misc/int_extremes.dart';
-import '../../../export_internal.dart';
+import '../../../../../../flutter_map_tile_caching.dart';
+import '../../../../../misc/int_extremes.dart';
+import '../../../../export_internal.dart';
 import '../models/generated/objectbox.g.dart';
 import '../models/src/recovery.dart';
 import '../models/src/recovery_region.dart';

lib/src/backend/impls/objectbox/backend/internal.dart renamed to lib/src/backend/impls/objectbox/native/backend/internal.dart

@@ -4,7 +4,7 @@
 import 'package:meta/meta.dart';
 import 'package:objectbox/objectbox.dart';
 
-import '../../../../../../flutter_map_tile_caching.dart';
+import '../../../../../../../flutter_map_tile_caching.dart';
 import 'recovery_region.dart';
 
 /// Represents a [RecoveredRegion]