* Declared a new type called `StringPath` represents the path from a string
* Changed the value of `LsOptionsInterface`'s properties to their constant values instead of their types (number)
* Refactored the `LsTypesValues` type, ensuring values compatibility with changes of `LsTypesInterface` interface
* Declared a new type called `ResolvedLsOptions` and an interface called `DefaultLsOptions`

This constant object contains all default options for `ls*` functions and it is publicly visible. In addition, refactored some types representation from specific parameters, variables, and even on explicit conversion types to more precise and improve types correctiveness.

By defining a new internal function called `resolveOptions` with consume one argument which for the unresoved `options` itself we can definitely improve the `options` parameter resolution to more flexible and use less code. This also make improvisation of type strict to that parameter.

Here is the list new options that just being added in this change:
  - absolute?: { boolean } - Whether to return absolute paths for all entries.
  - basename? { boolean } - Whether to makes the returned entries only have their file and/or directories names.
  - rootDir?: { StringPath } - A string path represents the root directory to resolve the relative paths.

They all were have their own priority tier, in the list above their priority are sorted from the highest (top) to the lowest (bottom). So, if you specified the `rootDir` but you also enabled the `absolute` option, then -- as a result, -- the `absolute` will be used instead (it is because the `absolute` option have the highest priority) and the `rootDir` value will be ignored.

Please note, that the `basename` option are implicitly includes any directory names while listing a directory. If you want include the filenames only, then combining it with the `lsTypes.LS_F` is a good way if you are using `ls` function, or combine this option with `lsFiles` function for more flexible.

Please note, this only supports the URL with 'file:' protocol. Attempting to use other than 'file:' protocol will causing an error.

Added TypeDoc documentation to the `defaultLsOptions` object and the `resolveOptions` (internal) function.