Quickfix | Handle Time format error

Problem

Data coming from the PSX site is changing over time and varies from company to company, resulting in a lot of issues.
Issues: #4 #5

Solution

It is just a quick fix for the time format, however, will need a more dynamic solution to handle the difference between the number of data columns and header columns

Fixed string type conversion bug

Merge pull request #3 from MuhammadAmir5670/type-conversion-bug

Resolve string  conversion bug

fixed multi stock error

fixed multiple stocks data download

- fixed multiple stocks data downloading
- fixed documentation in README.md file
- updated version in setup.py file

removed date range selection bugs

• added customized date range method
• removed pandas date range method
• improved date range data selection

Removed Package import bugs

0.0.2

Merge branch 'master' of https://github.com/MuhammadAmir5670/psx-data…