Mass transfer calculation updates

[EvenSol]

Describe the bug The mass transfer calculations as illustrated in the following example seems to hang in numerical algorithms:

https://colab.research.google.com/github/EvenSol/NeqSim-Colab/blob/master/notebooks/process/masstransferMeOH.ipynb

To Reproduce Run exmple: https://colab.research.google.com/github/EvenSol/NeqSim-Colab/blob/master/notebooks/process/masstransferMeOH.ipynb

Expected behavior Mass transfer calculations using neqsim are important for a number of situations such as:

1. Calculation of time for evaporating a liquid in a gas stream
2. Drying of process equipment
3. Absorption and stripping processes

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Desktop (please complete the following information):

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Smartphone (please complete the following information):

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• OS: [e.g. iOS8.1]
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