PhysicsNeMo-Mesh: adds DomainMesh for combined manipulation of volume + surface meshes.

CHANGELOG.md

@@ -27,6 +27,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   using notation like `Mesh[2, 3]` for a 2D manifold in 3D space.
 - Adds adjacency caching to PhysicsNeMo-Mesh `Mesh` objects, allowing efficient
   reuse of neighbor information.
+- Adds `DomainMesh` class for grouping an interior mesh with named boundary
+  meshes and domain-level metadata, with passthrough geometric transforms
+  (translate, rotate, scale, transform) and data operations.
+- Allows selective per-field transformation of `Mesh` objects: `transform_point_data`,
+  `transform_cell_data`, and `transform_global_data` now accept `bool | TensorDict`
+  (or plain `dict` for convenience).
 
 ### Changed
 

physicsnemo/mesh/__init__.py

@@ -14,4 +14,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from physicsnemo.mesh.domain_mesh import DomainMesh
 from physicsnemo.mesh.mesh import Mesh