add repr/theme registry .clear method

src/mol-repr/representation.ts

 /**
- * Copyright (c) 2018-2022 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ * Copyright (c) 2018-2023 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
@@ -135,6 +135,12 @@ export class RepresentationRegistry<D, S extends Representation.State> {
     getApplicableTypes(data: D) {
         return getTypes(this.getApplicableList(data));
     }
+
+    clear() {
+        this._list.length = 0;
+        this._map.clear();
+        this._name.clear();
+    }
 }
 
 //

src/mol-repr/structure/registry.ts

@@ -41,7 +41,7 @@ export namespace StructureRepresentationRegistry {
         'carbohydrate': CarbohydrateRepresentationProvider,
         'ellipsoid': EllipsoidRepresentationProvider,
         'gaussian-surface': GaussianSurfaceRepresentationProvider,
-        'gaussian-volume': GaussianVolumeRepresentationProvider, // TODO disabled for now, needs more work
+        'gaussian-volume': GaussianVolumeRepresentationProvider,
         'label': LabelRepresentationProvider,
         'line': LineRepresentationProvider,
         'molecular-surface': MolecularSurfaceRepresentationProvider,

src/mol-theme/theme.ts

 /**
- * Copyright (c) 2018-2022 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ * Copyright (c) 2018-2023 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
@@ -156,4 +156,10 @@ export class ThemeRegistry<T extends ColorTheme<any, any> | SizeTheme<any>> {
     getApplicableTypes(ctx: ThemeDataContext) {
         return getTypes(this.getApplicableList(ctx));
     }
+
+    clear() {
+        this._list.length = 0;
+        this._map.clear();
+        this._name.clear();
+    }
 }
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