[FEATURE] - e2e tests

[iruzevic]

Implement e2e testing bundle to make sure all possible combinations are covered.

How will it work:

1. Create form or multiple forms with test cases
2. Predefine url pages for test cases
3. Copy form (code) from GH repo to your project
4. Run Terminal commands to run tests

Cover:

• Validation options
• Multi step form
• Multi flow form
• Condition tags

Fields:

• Input
• Input number
• Input URL
• Input range
• Rating
• Textarea
• Phone
• Phone no prefix
• Select
• Select multiple
• Country
• Country multiple
• Date
• Date time
• File Upload
• Checkboxes
• Radios