Rule Request: Configuration `onlyEnforceBeforeTrivialLines` for `VerticalWhitespaceClosingBracesRule`

[benjamin-kramer]

Vertical whitespace may be important for readability when the line with the closing brace is not a trivial one. The configuration should allows not enforcing the rule in such cases.

E.g. a non-triggering-example would be:

if someCondition {
  // do something
  // do something
 
} else if ... {
  // do something
  // do something
  // do something

} else {
  // do something
  // do something
}

[benjamin-kramer]

@SimplyDanny Any chance you could review/assign someone to the PR that resolves this issue?