Develop draft general single-site script for running containers with single-site forcing files

[serbinsh]

Using existing example script and container file (docker pull serbinsh/ctsm_containers:ctsm-fates_next_api-fates_sci.1.23.0_api.7.1.0) generate a new build script that uses pre-extracted default single-point forcing files with full-res surf/domain/ndep etc files to identify full set of required inputs. Use a lower resolution grid to start with the I2000Clm50FatesGs compset