release versio 3.0.4
changes:
- reformat/Refactor project structure
- adding FlaskCaptcha Master class
- adding getFlaskCaptcha3 method for getting google-captcha version 3
- adding getFlaskCaptcha2 method for getting google-captcha version 2
- adding name spacing for each captcha
- adding the ability to create multiple captchas with different versions
- adding pytest base test