Version of SWIFT from April 2025.

Major changes since v2025.01:

• Updated neighbour finding performing operations at different level in the tree to speed up operations in deep hierarchies with steep density gradients (backport from COLIBRE fork)
• REMIX-SPH included as a hydrodynamics scheme.
• Added more equations of state for planetary applications.
• Added an interface to Lustre such that the code can stripe files cleverly based on the properties of the filesystem it runs on.
• Many small bug fixes
• Many updates to the GEAR model.

This version is nearly identical to the base version used for the large COLIBRE production runs.