exclude dangling parens in methods with enabled verticalMultiline

[darl]

This PR adds new configuration flag to avoid dangling parens in method definitions

verticalMultiline.excludeDanglingParens = [ def ]

Example:

def getListing(a: String, b: String, c: String, d: String)(implicit e: String): Future[String] = {
  a + b + c + d + e
}

Without flag formats to:

def getListing(
    a: String, 
    b: String, 
    c: String, 
    d: String
  )(implicit e: String
  ): Future[String] = {
  a + b + c + d + e
}

With new flag:

def getListing(
    a: String, 
    b: String, 
    c: String, 
    d: String
  )(implicit e: String): Future[String] = {
  a + b + c + d + e
}

[darl]

CI failed with network error:
Caught java.net.ConnectException: Connection timed out (Connection timed out) (Connection timed out (Connection timed out)) while downloading https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.7/jars/sbt-assembly.jar

Don't see a button to restart tests

[tanishiking]

LGTM!
I re-ran the CI and it now passed 👍 Thank you for your contribution 🚀