Update Caffeine to reflect all arg and procedure name changes in PRIF v0.3

[ktras]

After the new PRIF spec version is ready, make associated changes in Caffeine to match the follow naming changes:

• Update local_buffer and local_buffer_stride arguments (in multiple procedures) current_image_buffer and current_image_buffer_stride
• Update prif_local_data_size to prif_size_bytes
• Update coindices args (in multiple procedures) to cosubscripts
• Update prif_allocate and prif_deallocate to prif_allocate_coarray and prif_deallocate_coarray
• Update prif_allocate_non_symmetric and prif_deallocate_non_symmetric to prif_allocate and prif_deallocate