[BUG] Handle property name as JSONPath

[nieomylnieja]

When there's a dot in the path we are currently not escaping it at all which leads to misleading and simply invalid paths.

The same applies to empty paths (created for instance by empty map key) and other forbidden characters by JSONPath.

The solution is to further adhere to the JSONPath standard (updated version) and use ['<escape_sequence>'] syntax whenever we call WithName or infer a name.