Add and vet all interactive functions and documentation

[njtierney]

No description provided.

[njtierney]

remember to add the following to NEWS.md

## New features in development version on github

Interactive, `plotly` versions for each of the `vis_*` family

- `vis_dat_ly()`
- `vis_miss_ly()`
- `vis_guess_ly()`
- `vis_compare_ly()`

[njtierney]

Note that adding the "text" field to the ggplot is currently not working for ggplot 3.0 for vis_compare

              # text assists with plotly mouseover
                    # text = c("value_df1", "value_df2"))) +
    # this "test code has been removed as ggplot2 version 3.0.0
    # breaks.
    # Logged in issue https://github.com/ropensci/visdat/issues/89