[GPU Porting] MOM_diag_manager_infra.F90

[edoyango]

access-om3:

• send_data_infra_3d (0.27s)
• send_data_infra_2d (0.09s)
  • 3d/2d array accumulation is probably the only place where GPU stuff needs to happen, with transfers to host for writing.
• register_diag_field_infra_array (0.21s)
• mom_diag_field_add_attribute_scalar_c (0.09s)
• mom_diag_axis_init (0.02s)
• get_mom_diag_axis_name (0.02s)
• mom_diag_manager_init (0.01s)
• send_data_infra_0d (0.01s)

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Originally opened by @edoyango in marshallward/MOM6#144 (https://github.com/marshallward/MOM6/issues/144).
Original labels not available on this repo: gpu, ACCESS-OM3 config.