Partition graph metrics update

[djabaay]

Updating the partition graph type to have a weighting factor and the %metrics routine to return the max fraction of processor dependent source regions divided by the total number.

[djabaay]

All items have been updated. Awaiting your reply @apfitzge.

[djabaay]

Currently just running MPACT master with the branch checked out to verify the OPTIONAL argument is compatible. When the tests finish, I'll post results.

[djabaay]

100% tests passed, 0 tests failed out of 472

Subproject Time Summary:
CTeuchos         =   1.39 sec*proc (4 tests)
ForTeuchos       =   2.46 sec*proc (4 tests)
Futility         =  48.15 sec*proc (60 tests)
MPACT_API        =  44.02 sec*proc (3 tests)
MPACT_Drivers    =   2.33 sec*proc (4 tests)
MPACT_exe        = 16000.34 sec*proc (218 tests)
MPACT_libs       = 1102.36 sec*proc (179 tests)

Label Time Summary:
BASIC         =  48.15 sec*proc (60 tests)
CONTINUOUS    =  48.15 sec*proc (60 tests)
HEAVY         =  48.15 sec*proc (60 tests)
NIGHTLY       =  48.15 sec*proc (60 tests)

Total Test time (real) = 1265.74 sec

djabaay@nightfort:~/MPACT/Futility$ git status
# On branch PartitionGraphMetricsUpdate

No failures, safe to merge in with the optional argument.

[djabaay]

ping @bkochuna