Add AIMNET2 harness #703

Job	Run time
🐍 3.7 • Psi4-1.5 • ubuntu-latest	1m 58s
🐍 3.10 • Psi4-1.6 • ubuntu-latest	1m 51s
🐍 3.12 • Psi4-1.8 • windows-latest	4m 12s
🐍 3.8 • ANI • ubuntu-latest	1m 19s
🐍 3.8 • OpenMM • ubuntu-latest	1m 23s
🐍 3.10 • xTB • ubuntu-latest	51s
🐍 3.7 • QCore • ubuntu-latest	1m 34s
🐍 3.8 • NWChem70 • ubuntu-20.04	1m 11s
🐍 3.12 • NWChem • ubuntu-latest	56s
🐍 3.8 • MRChem • ubuntu-latest	1m 2s
🐍 3.8 • ADCC • ubuntu-latest	1m 7s
🐍 3.8 • optimization-dispersion • ubuntu-latest	1m 17s
🐍 3.11 • optimization-dispersion • windows-latest	4m 19s
🐍 3.10 • MACE • ubuntu-latest	1m 17s
🐍 3.11 • AIMNET2 • ubuntu-latest	1m 5s
🐍 ${{ matrix.cfg.python-version }} • ${{ matrix.cfg.label }}	0s
	25m 22s

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