Move wheel install logic into Pex. #2320

Job	Run time
Check GitHub Organization	1s
tox -e py312-pip23_3_1	4m 18s
./dtox.sh -e py27-pip20	4m 19s
tox -e py312-pip23_3_1-integration	4m 18s
tox -e format-check,typecheck,vendor-check,package	4m 20s
./dtox.sh -e py35-pip20	4m 15s
./dtox.sh -e py311-pip20	4m 18s
./dtox.sh -e py311-pip22_3_1	4m 17s
./dtox.sh -e py311-pip23_1_2	4m 18s
./dtox.sh -e py312-pip23_3_1	4m 17s
./dtox.sh -e pypy310-pip20	4m 22s
./dtox.sh -e pypy310-pip22_3_1	4m 16s
./dtox.sh -e pypy310-pip23_1_2	4m 14s
./dtox.sh -e py27-pip20-integration	4m 18s
./dtox.sh -e py37-pip22_3_1-integration	4m 22s
./dtox.sh -e py37-pip23_1_2-integration	4m 18s
./dtox.sh -e py311-pip20-integration	4m 19s
./dtox.sh -e py311-pip22_3_1-integration	4m 19s
./dtox.sh -e py311-pip23_1_2-integration	4m 18s
./dtox.sh -e py312-pip23_3_1-integration	4m 17s
./dtox.sh -e pypy310-pip20-integration	4m 22s
./dtox.sh -e pypy310-pip22_3_1-integration	4m 15s
./dtox.sh -e pypy310-pip23_1_2-integration	4m 17s
Gather Final Status	1s
	1h 34m 39s

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