C API new class to handle non-army related functions

[masonwillman]

In #582, we decided to add an additional class alongside ninjaArmy to make API development easier. For design details, please see this comment.

Example code of this new class being used with the API:

// Using the function
NinjaArmoryH ninjaArmory:
char** options;
ninjaArmory = NinjaMakeArmory(options);
int NinjaErr = NinjaFetchData(ninjaArmory, options)

// Function definition
// This would include more parameters depending on use case
NinjaFetchData(NinjaArmoryH ninjaArmory, char** options) {
    if (ninjaArmory != NULL) {
        // Fetch data defined in new class, similar to ninjaArmy function calls.
        reinterpret_cast<ninjaArmory*> ninjaArmory->fetchData() 
    }
}

[masonwillman]

We may not need ninjaTools as much as I initially thought. wxModelInitationalizationFactory has two functions: makeWxInitialization and makeWxInitializationFromId which allow us to create wx model objects using the file path and identifiers (ID). This is how the old GUI and CLI handle creating whether models for data fetching and time step lists. This method is easier than creating instances of every model, and calling them as needed. If we don't need instances of the models for the run time of the API, do we still need ninjaTools? This is probably a discussion for when we are back in office. @nwagenbrenner @jforthofer thoughts?