Add restart support for OPT_ADAM optimizer #3

Job	Run time
conda / conda (macos-14)	12m 25s
conda / conda (macos-15)	13m 42s
docker / docker (rocky8)	24m 30s
codecheck / codecheck	59m 17s
mac / macports (+allmodules, macos-13)	1s
conda / conda (ubuntu-22.04)	15m 48s
linux / linux (-debug-)	33m 15s
linux / linux (-intel-)	50m 52s
mac / macsimple (macos-14)	5m 8s
linux / linux (-nvhpc-mpi-)	1h 0m 38s
linux / linux (-mpi-)	54m 40s
docker / docker (fedora39)	19m 51s
linux / linux (-debug-mpi-)	40m 52s
mac / macports (macos-13)	1s
linux / linux (-doc-mpi-)	29m 55s
mac / macsimple (macos-13)	1s
linux / linux (-pycv-mpi-)	11m 6s
linux / linux (-coverage-mpi-)	57m 0s
	8h 9m 2s

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