Updating dragonfly-custom: support for df-dally vc counts, adding statistics for intra-group and inter-group traffic, introducing minimal bias and adaptive threshold

Report error when model-level sampling hasn't been implemented

See merge request !31

using nsecs instead of seconds when compute delay. This should give us an accurate measure of the compute time

Template for new networks

See merge request !38

adding bisection workload to ftree synthetic

See merge request !41

Fixing early event triggers when using rendezvous protocol

See merge request !40

changing event triggers for rendezvous protocol, next event is now issued when actual data transfer completes

Adding wait-time fix for dragonfly, dragonfly-custom and slimfly models

See merge request !39

Change-Id: I76964aaba47b4890dbac7f3de7803df796f4f2bb

Change-Id: I358b5aa7f666a9294900e2e48b50d979fddb6856

For simplest case, only 2 functions and premable changes should suffice to add a
new network. Update Express Mesh to serve as an example.

Change-Id: I48de25b4c00360201cb23a4a7089ddc08300137d

Opt debug br

See merge request !37

Bug fix: set per resource values to 1 (if 0)

See merge request !34

Change-Id: I430c19d46be11f00c4123118334f7e68f835a846

Change-Id: I07a70c6bc91e89634997998cf4ff07f74af67b53