ASIS:Development plan

Possible plan (RG):

Modularise solvers within glimmer and glam, keep them under seperate version control in a new project. Define API.

For our project, merge the following into one piece of code:
 * relevant solvers
 * relevant glam code
 * relevant glimmer code (thermodynamics? glint?)
 * 3rd party nested grid code

BL and SP are likely to run a parallelised version of glam using much of glimmer. This may well be a seperate code thread if we need to do major restructuring in order to incorporate nested grids.

Needs further discussion with IR, BL, TP, SP, RG, GW. Also depends somewhat on success of 1D nested grid study.