code: @Nullable
    public static IJson readFromPath (@Nonnull final Path aPath, @Nonnull final Charset aFallbackCharset)
    {
      return readFromPath (aPath, aFallbackCharset, null);
    }
docs: Read the Json from the passed Path.
  
  @param aPath
  The file containing the Json to be parsed. May not be
  <code>null</code>.
  @param aFallbackCharset
  The charset to be used in case no is BOM is present. May not be
  <code>null</code>.
  @return <code>null</code> if reading failed, the Json declarations
  otherwise.