No errorText and label parameters

[Abdulvaliy]

I want this package look same as my other TextInputs. The problem is I cannot give error text if there is any. Also, I could not give custom label (as Widget). Because I use RichText in label that contains label (as main text) and asterisk (the * sign) in red showing that this field is required.

I would be very glad if the authors add this parameters!