write a function to parse dropdown using lxml

[chavarera]

The Speed of selenium object parser is slow.

https://github.com/Python-World/s-tool/blob/d14ddb3f4fe7a362abbbc6f7885f4a268ca0af20/s_tool/parser.py#L5

replace above method with LXML logic

Steps:

1. get selenium input element(keep parameter and function name same)
2. get innerHTML of given element
3. parse text and values
4. return parsed text and value in dictionary format

If you have any doubt comment