C1 continuous functionspace (hermite) for interval and quad mesh in dolfinx

```
dolfinx.fem.functionspace(mesh_r, basix.ufl.element(
"HER", 'interval', 2, shape=(3, )))
```
```
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
File /usr/lib/python3/dist-packages/basix/finite_element.py:903, in string_to_family(family, cell)
902 try:
--> 903 return families[family]
904 except KeyError:

KeyError: 'HER'

During handling of the above exception, another exception occurred:

ValueError Traceback (most recent call last)
Cell In[6], line 1
----> 1 dolfinx.fem.functionspace(mesh_r, basix.ufl.element(
2 "HER", 'interval', 2, shape=(3, )))

File /usr/lib/python3/dist-packages/basix/ufl.py:1988, in element(family, cell, degree, lagrange_variant, dpc_variant, discontinuous, shape, symmetry, dtype)
1985 if family == "DPC":
1986 discontinuous = True
-> 1988 family = _basix.finite_element.string_to_family(family, cell.name)
1990 # Default variant choices
1991 EF = _basix.ElementFamily

File /usr/lib/python3/dist-packages/basix/finite_element.py:905, in string_to_family(family, cell)
903 return families[family]
904 except KeyError:
--> 905 raise ValueError(f"Unknown element family: {family} with cell type {cell}")

ValueError: Unknown element family: HER with cell type interval
```
Similarly for quad mesh,
```
dolfinx.fem.functionspace(mesh, basix.ufl.element(
"HER", 'quadrilateral', 2, shape=(3, )))
```
```
ValueError: Unknown element family: HER with cell type quadrilateral
```

I don't find any option to implement C1 continuity requirement for dolfinx. Can you provide a way to solve this issue which is available and tested?