Move wheel install logic into Pex. #2326

Job	Run time
Check GitHub Organization	1s
tox -e format-check,typecheck,vendor-check,package	4m 17s
tox -e py312-pip23_3_1	5m 26s
./dtox.sh -e py27-pip20	2m 11s
tox -e py312-pip23_3_1-integration	5m 28s
./dtox.sh -e py35-pip20	2m 23s
./dtox.sh -e py311-pip20	2m 9s
./dtox.sh -e py311-pip22_3_1	2m 8s
./dtox.sh -e py311-pip23_1_2	2m 24s
./dtox.sh -e py312-pip23_3_1	2m 24s
./dtox.sh -e pypy310-pip20	2m 8s
./dtox.sh -e pypy310-pip22_3_1	2m 24s
./dtox.sh -e pypy310-pip23_1_2	2m 23s
./dtox.sh -e py27-pip20-integration	2m 9s
./dtox.sh -e py37-pip22_3_1-integration	2m 24s
./dtox.sh -e py37-pip23_1_2-integration	2m 24s
./dtox.sh -e py311-pip20-integration	2m 25s
./dtox.sh -e py311-pip22_3_1-integration	2m 25s
./dtox.sh -e py311-pip23_1_2-integration	2m 9s
./dtox.sh -e py312-pip23_3_1-integration	2m 14s
./dtox.sh -e pypy310-pip20-integration	2m 23s
./dtox.sh -e pypy310-pip22_3_1-integration	2m 9s
./dtox.sh -e pypy310-pip23_1_2-integration	2m 23s
Gather Final Status	1s
	58m 52s

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