Resolve "Root issues and stage-out with SPANK"

At the end, stage-out in root installation was never implemented, so this merge request does it:
1. Stage-in (and waiting until copy happens, bool in trasfer_datasets)
2. Stage-out (and waiting until copy happens)
3. terminates adhoc fs
4. removes adhoc fs directory.

Some issues with needed environment variables solved, however LIBGKFS_HOSTS_FILE and GKFS_DAEMON and GKFS_CLIENT should be defined in the environment as they are installation dependant.

See merge request !126

Rnou/rootinstall fixes

This MR solves some issues with the installation on root scenarios (plugin / systemd). This also solves a CPU hog (100%) for the scheduler.

See merge request !125

# Conflicts:
#   src/scord/rpc_server.cpp

adhoc fs integration

Solves #162 
Solves #161

See merge request !124

rpc_server::scheduler_update() function

gekkofs.sh

Scord

Add ADM_transfer_status_create and ADM_transfer_status_destroy functions
to types.c

Update cargo version and thallium bug

Closes #160

See merge request !123

New release solving integration with slurm (0.3.3)

This MR adds /opt/slurm as it is found in an external Cluster. The normal paths doesn't work so we need to specify it manually.

See merge request !121

Resolve "Update spack to 0.3.2"

Closes #159

See merge request !120

Resolve "Release v0.3.2"

Closes #158

See merge request !119

and add scord_adhoc utility

Update redis with information about adhocfs

Closes #153

See merge request !116