Steps needed to compile an end-to-end stencil CSL example

[dk949]

• optimisation: sort offsets in post-process (@n-io)
• check that the library supports num_chunks > 1 ( 🤷 )
• padded_z_dim unused (@dk949)
• empty comptime_structs (@dk949)
• offset cast from i16 to i32 to i16
• transformations: (lower-csl-stencil) Promote args before outlining #3237
• transformations: (memref-to-dsd) Handle csl variables #3236
• transformations: New stencil-shape-minimize pass #3229 devito over-estimates grid sizes
• transformations: (lower-csl-stencil) Send only core data #3223
• transformations: New csl-stencil-materialize-stores pass #3222 (--csl-stencil-materialize-stores, isBorderRegionPE fix)
• transformations: (lower-csl-stencil) Check isBorderRegionPE #3213
• fix: (csl) adjusted width and height of the PE #3209 (layout module has wrong dimension on width and height params)
• transformations: Add CSL dsd canonicalisation #3208
• backend: (csl) allow get_dir to be inlined #3202
• transformations: (lower-csl-stencil) Store results to apply.dest #3203
• transformations: (csl-stencil-to-csl-wrapper) Add unblock_cmd_stream call #3198 (was in the wrong place)
• Scale offset in callback func by chunk_size
• Add @set_rectangle(width, height); in layout module
• Get mem_dsd needs a comma
• Add exports in layout module
• Hoist allocs out of main func (--csl-wrapper-hoist-buffers)
• Printer fix for get_dsd (don't print underlying symbol)
• Add memcpy.unblock_cmd_stream(); to program module
• Add @rpc(@get_data_task_id(memcpy.LAUNCH)); to program module
• Add support for loops and async cflow (--csl-stencil-handle-async-flow)