✨🤖 Update DistMult to ERModel

[mberr]

This PR updates DistMult to ERModel.

Benchmark

TL;DR: Overall comparable runtime; in training slightly slower; in some evaluation settings faster.

Key	Value
OS	posix
Platform	Linux
Release	5.4.0-81-generic
Time	Sat Apr 16 18:12:51 2022
Python	3.8.10
PyKEEN	1.8.1-dev
PyKEEN Hash	*
PyKEEN Branch	*
PyTorch	1.10.0+cu113
CUDA Available?	true
CUDA Version	11.3
cuDNN Version	8200

pykeen experiments reproduce distmult yang2014 fb15k

commit	train	eval
661b0eb (master)	3.04s*	12.90s**
a7bc64e (update-distmult-to-ermodel)	3.10s*	11.63s**

• *: sub_batch_size=24155
• **: batch_size=2048.

pykeen experiments reproduce distmult yang2014 wn18

commit	train	eval
661b0eb (master)	1.03s*	2.12s**
a7bc64e (update-distmult-to-ermodel)	1.04s*	1.43s**

• *: sub_batch_size=24155
• **: batch_size=1024.

pykeen train distmult --embedding-dim 128 --training-loop lcwa --create-inverse-triples --dataset fb15k237 --batch-size 1024

commit	train	eval
661b0eb (master)	51.87s	3.27s*
a7bc64e (update-distmult-to-ermodel)	51.90s	3.29s*

• *: batch_size=2048

[mberr]

@PyKEEN-bot test