Small modification for NorESM2.0.6 release

New SSP5-3.4 compsets and emission driven SSP compsets

Small fixes for NorESM2.0.5 release

Non answer changing fixes for more compilers and NorCPM . Readme added to explain branches. Default branch is changed to illustrate where pull requests should by default go, clm-Nor-dev, until CESM2.2 changes are in place. @DirkOlivie

Setup to work with high resolution version of BLOM

Modifications to allow for high resolution (1/8 degree) simulations with BLOM.

Small additions for extra CMIP6 compsets

Contains a few updates for extra CMIP6 compsets

Initial setup for multi-repository CMIP6 version of NorESM2

Initial setup for multi-repository CMIP6 version of NorESM2