Create multiple classes

[pantoniad]

Create more classes for various things. The "dispersion_visualizatio.py" already contains a series of functions that can be placed into a separate class python file.

Also, as the need for data entry will be greater in the future, create a function (and then make it a class) that would extract the required data based on what the user specifies.

[pantoniad]

Created a python to latex pipeline class. Currently only converts dataframes from python to latex tables.

Also included a fuel flow methods class. In the future more fuel flow methods should be added.