Separating list from read function and other small tweaks.

[jdunkerley]

Pull Request Description

• Rename Faker.string_value to Faker.text_value.
• Remove Regex.pattern_string as duplicate of Regex.pattern.
• Sort the Date picker.
• Rename Data.list_directory to Data.list.
• Remove support for reading a directory.

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• The documentation has been updated, if necessary.
• Screenshots/screencasts have been attached, if there are any visual changes. For interactive or animated visual changes, a screencast is preferred.
• All code follows the
  Scala,
  Java,
  TypeScript,
  and
  Rust
  style guides. In case you are using a language not listed above, follow the Rust style guide.
• Unit tests have been written where possible.

[radeusgd]

Looks good, just a few small questions and one remark on naming (the pattern case).