Core CODES Updates

See merge request !85

This commit adds functionality to accept a compute_time_speedup="X"
parameter in a model's configuration file to accelerate the delay
applied when accounting for compute_time in model-net-mpi-replay.c.

X here is a double where 2.0 represents a 2x reduction in delay
resulting from compute_time simulation. e.g. a setting of "2.0" means
that all increments of compute_time are reduced by a factor of 2.

Update all usage of "server" lp to "nw-lp"

This change is made for consistency across all configuration files
and workload generators in core CODES. Where older models and versions
of CODES utilized the "server" identifier to specify the number of
server LPs per modelnet group repetition, newer models and
configurations utilized the less paradigm specific "nw-lp" identifier.

This shift slightly fractured the codebase and led to confusion when
running similar/same configurations across different network models.

Specifically, this change converts all usage of the "server" identifier
to the "nw-lp" identifier. All tests, existing default configuration
files, and models have been updated to use the "nw-lp" identifier for
the workload server LPs. Some docs and readmes have been updated as well
to no longer instruct new users to use the "server" identifier.

Revert "Merge branch 'workloads' into 'master'"

See merge request !78

This reverts merge request !77

Workloads

See merge request !77

# Conflicts:
#   maint/codes.pc.in

Adding default definition to pkg-config variable: swm_datarootdir

Closes #167

See merge request !76

set eager threshold to max for conc-online workload type, since rendezvous protocol cannot work with Conceptual for now

DFP Script Fixes

See merge request !66

ross-org url (and whitespace)

See merge request !74

Replace call of deprecated MPI_Type_hindexed

See merge request !73

Fixing multiple ranks per node mapping selection

See merge request !71

Compatibility fix of merged QoS features

See merge request !72

The commit replaces the call of the deprecated function MPI_Type_hindexed
with the current function MPI_Type_create_hindexed.

Using CODES with OpenMPI depends on this change.

DFP and MPI replay layer instrumentation updates

See merge request codes/codes!70