Creating Module 3 Spatial Crosswalk Tables

[wokenny13]

There are 3 new TADA Module 3 functions focused on helping users to apply unique site-specific criteria for assessments.

If a user is only interested in a ML sites level of assessments, they only need to run these 3 functions in order:

1. TADA_CreateParamRef()
2. TADA_CreateUseParamRef()
3. TADA_CreateSpatialRef()

Now, if a user is interested in an AU level of assessments, they can run two additional 'helper' functions prior to running TADA_CreateSpatialRef(). See TADA Module 3b vignette for more info to walk through the process:

4. TADA_CreateUseAURef()
5. TADA_CreateWaterUseParamRef()

This PR also reflects some minor updates to TADA_CreateParamRef() and TADA_CreateUseParamRef().

The excel file options in the functions still need updates, but the workflow should work when excel = FALSE