Converts strings to Snake Case
Examples
str_to_snake_case("string of words")
#> [1] "string_of_words"
str_to_snake_case("StringOfWords")
#> [1] "string_of_words"
str_to_snake_case("s!t$ring of %char^&act*ers")
#> [1] "string_of_characters"
str_to_snake_case(c("multiples of strings", "strings in multiple", "many strings"))
#> [1] "multiples_of_strings" "strings_in_multiple" "many_strings"