Inactive links and Inflow links issue for Matrix Export

[msdogan]

@qjhart @jrmerz when exporting network matrix with command cnf matrix --format csv --start 2002-08 --stop 2002-10 --ts . --to network --max-ub 1000000 --outnodes node there are two issues identified:

• Cost (c) and Amplitude (a) values for inflow links are flipped. Example: INFLOW.2002-09-30 SR_HTH.2002-09-30 0 1 0 4.099832 4.099832 First value after link name is k, then cost, amplitude, lower_bound and upper_bound. So, cost should be zero instead of 1, and amplitude should be 1 instead of zero.
• Links with zero upper bound are not included in the matrix, which causes mass balance problem while running the model.

[jrmerz]

pushed to npm @ v1.0.36

[msdogan]

@jrmerz this is verified working.