Add HSE-specific vdW parameters for dftd3 and dftd3-bj to MPHSERelaxSet.

[hongyi-zhao]

Add HSE-specific vdW parameters for dftd3 and dftd3-bj to MPHSERelaxSet. For the related discussion and information, see below:
https://www.vasp.at/forum/viewtopic.php?t=19551
https://github.com/dftd3/simple-dftd3/blob/3a50cbdf8566b3caa8760499ae21746ec9a5e535/assets/parameters.toml#L80-L82

[hongyi-zhao]

This PR may not be a good way. Another way I can think of is to modify vdw_parameters.yaml as follows:

diff --git a/src/pymatgen/io/vasp/vdW_parameters.yaml b/src/pymatgen/io/vasp/vdW_parameters.yaml
index 6708fbd1e..8adcda275 100644
--- a/src/pymatgen/io/vasp/vdW_parameters.yaml
+++ b/src/pymatgen/io/vasp/vdW_parameters.yaml
@@ -3,8 +3,15 @@ dftd2:
     IVDW: 1
 dftd3:
     IVDW: 11
+    hse:
+        VDW_SR: 1.129
+        VDW_S8: 0.109    
 dftd3-bj:
     IVDW: 12
+    hse:
+        VDW_A1: 0.383
+        VDW_S8: 2.310
+        VDW_A2: 5.685    
 dftd4:
     IVDW: 13
 ts:

However, I could not effectively implement the corresponding code adjustments in other parts of pymatgen for this alternative method.

[hongyi-zhao]

Also see here for the related discussion.

[shyuep]

Pls add tests for the new parameters. @mkhorton What needs to be done about the hashes? I still maintain the hashes are creating more headache than they solve.

[hongyi-zhao]

@shyuep What do you mean by saying the hashes here?

[shyuep]

The failing tests are due to a hash check whenever input set yaml files are modified.

[hongyi-zhao]

The failing tests are due to a hash check whenever input set yaml files are modified.

1. I should always create a PR branch based on materialsproject:master of pymatgen instead of my local master branch which includes other unmerged PRs I have made, which triggered this issue.
2. Using additional hash checks over these input sets of YAML files is unnecessary and troublesome, because they are all simple text files, and git itself already can trace them perfectly and is designed for such a job.