Replace `tidyverse::` with package name

There was a [recent post](https://www.tidyverse.org/articles/2018/06/tidyverse-not-for-packages/) which warned people not to use the tidyverse package in package development, and I thought this might be a good opportunity to use a package to change tidyverse prefixes to the more limited package prefix. So the user could write:

```
mtcars %>%
tidyverse::mutate(n = n()) %>%
tidyverse::gather(...)
```
And get after running the script their code would change to:

```
mtcars %>%
dplyr::mutate(n = n()) %>%
tidyr::gather(...)
```

Anyway I just found out about this awesome package and thought this idea would fit well here, does it seem like a useful idea?