function readPlainBoolean(reader, count) {
  const values = new Array(count)
  for (let i = 0; i < count; i++) {
    const byteOffset = reader.offset + (i / 8 | 0)
    const bitOffset = i % 8
    const byte = reader.view.getUint8(byteOffset)
    values[i] = (byte & 1 << bitOffset) !== 0
  }
  reader.offset += Math.ceil(count / 8)
  return values
}
Read `count` boolean values.

@param {DataReader} reader
@param {number} count
@returns {boolean[]}