Tableau-hyper-management

- updated download source URL for Tableau Hyper API

- added boolean data type
- added an optional log file to ease debugging activity when necessary
- bumped version of TableauHypeAPI to 0.0.9746 (which is now available on [pypi.org](https://pypi.org/) as [tableauhyperapi](https://pypi.org/project/tableauhyperapi/))

- internal code optimizations
- switched default behavior to store 0 values instead of nulls in case of integer determined fields

- just reflecting new version of Tableau Hyper API (former 0.0.8952 => new 0.0.9273)

- additional data type formats recognized:
- date-DMY-dash;
- date-DMY-dot;
- date-DMY-slash;
- date-MDY-medium;
- date-MDY-long;
- datetime-MDY;
- datetime-MDY-micro-sec;
- datetime-MDY-medium;
- datetime-MDY-medium-micro-sec;
- datetime-MDY-long;
- datetime-MDY-long-micro-sec;
- various code optimizations:
- eliminating data type as method parameters and using original class variable;
- moved data type determination to main program logic and out of the Hyper creation one = segregation of duties;
- split analyzing method into 2 separate parts, one for very first unique value and another methods for rest;
- switch to a more standardized class name in the main logic.

- switch the handler of user input parameters from getopt to argparse package (greater flexibility, shorter code, easier future maintenance)