[Pyomo.DoE] Add simultaneous design of multiple experiments #9640

Job	Run time
lint/style-and-typos	1m 38s
linux/3.10/bare-env	14s
linux/3.14	1m 30s
linux/3.13	1m 30s
linux/3.10	1m 30s
linux/3.11	1m 30s
linux/3.11/mpi	1m 30s
osx/3.11	1m 30s
linux/3.12	1m 30s
osx/3.12	1m 30s
win/3.14	1m 30s
win/3.10	1m 30s
win/3.13	1m 16s
osx/3.14	1m 30s
osx/3.10	1m 30s
linux/3.12/conda	1m 30s
linux/pypy-3.11-v7.3.20	1m 31s
linux/3.11/singletest	1m 31s
win/3.12	1m 30s
linux/3.10/pyutilib	1m 31s
linux/3.12/cython	1m 30s
linux/3.10/slim	1m 30s
linux/3.13/rtd	1m 31s
linux/3.13/nosolvers	1m 30s
win/3.11	1m 30s
linux/3.12/numpy2	1m 31s
osx/3.13	1m 30s
process-coverage-${{ matrix.TARGET }}	1s
	39m 14s

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