feat: add interval fields

[cvng]

What kind of change does this PR introduce?

add missing interval fields from from https://www.postgresql.org/docs/16/datatype-datetime.html

What is the current behavior?

parser panics

What is the new behavior?

parser returns

Additional context

as in #106, "multi-word" interval fields are required, eg. this query:

CREATE TABLE IF NOT EXISTS distributors (len interval hour to second(3));

expect this tokens:

tokens.push(TokenProperty::from(Token::HourP));

tokens.push(TokenProperty::from(Token::To)); tokens.push(TokenProperty::from(Token::SecondP));