message: feat(utxo-lib): add method hasWitnessData(scriptType)
  Issue:
diff: @@ -21,6 +21,13 @@ export function isScriptType2Of3(t: string): t is ScriptType2Of3 {
  export type ScriptType = ScriptTypeP2shP2pk | ScriptType2Of3;
  +/**
  + * @return true iff scriptType requires witness data
  + */
  +export function hasWitnessData(scriptType: ScriptType): scriptType is 'p2shP2wsh' | 'p2wsh' | 'p2tr' {
  + return ['p2shP2wsh', 'p2wsh', 'p2tr'].includes(scriptType);
  +}
  +
  /**
  * @param network
  * @param scriptType
  