Feature Request: autoComplete mode for free text input (multi + comma support)

[Mohammed-Sameer-Inamdar]

Currently, react-dropdown-select supports create and createNewLabel, but it requires explicit selection to add new values.
I would like to propose autoComplete and separator props with the following behavior:

When autoComplete=true:

• Typed text is automatically treated as selected value

• No need to explicitly click "create"

  When multi=true:

  • Comma-separated input creates multiple values
    Example:
    "apple, banana" → ["apple", "banana"]

- Matching logic:

• If typed value matches existing option → use that option
• Else → create new value

separator: (default: comma)

Use cases:

• Tag inputs
• Search bars with suggestions
• Faster UX for bulk entry

I amm happy to work on a PR if this approach is acceptable.