Adding required COSIMA/spack_packages packages, access-om3 SBD rename

[CodeGat]

In this PR:

• Added the COSIMA/spack_packages packages required for the OM3 spack.yaml - fms, fortranxml at COSIMA/spack_packages@a65eaf4
• Renamed SBD from access-om3-virtual to access-om3
• Renamed SPD from access-om3 to access-om3-cmakeaccess-om3--nuopc (Open to changing this name. This also may affect some COSIMA stuff, so I'd like to get @micaeljtoliveira to review and approve)

Tagging @aidanheerdegen as well.

Closes #91

[harshula]

Hi, Describing function in an SPD name is probably better than referring to its build system. i.e. Can the access-om3-cmake suffix describe something other than its build system? e.g. access-om3-nuopc.

[CodeGat]

Closing this as it has been split into two PRs as per @harshula request:

• Addition of new packages: Copy packages required for OM3 from COSIMA/spack_packages #93
• Rename of access-om3-virtual and access-om3: Renamed access-om3 -> access-om3-nuopc, access-om3-virtual -> access-om3 #94