JsNumber in JsonNodes

[alexander-myltsev]

JsNumber should be of BigDecimal when scala-js would support it.

  case class JsNumber(value: BigDecimal) extends JsValue
  object JsNumber {
    def apply(n: Int) = new JsNumber(BigDecimal(n))
    def apply(n: Long) = new JsNumber(BigDecimal(n))
    def apply(n: Double) = n match {
      case n if n.isNaN => JsNull
      case n if n.isInfinity => JsNull
      case _ => new JsNumber(BigDecimal(n))
    }
    def apply(n: BigInt) = new JsNumber(BigDecimal(n))
    def apply(n: String) = new JsNumber(BigDecimal(n))
    def apply(n: Array[Char]) = new JsNumber(BigDecimal(n))
  }