Tweak - Enable minimum time for form submission

[riteelama]

All Submissions:

• Have you followed the Everest Forms Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Previously, there was no feature to prevent the form submission if user submits the form before some duration. This PR add ability to prevent the form submission if there is no interaction of user on the form until the specified duration.

Closes # .

How to test the changes in this Pull Request:

1. Go to Everest Forms Form Settings > Anti-Spam and Security.
2. Enable the Minimum time for form submission
3. Enter the duration(in seconds) for required interaction with the form.
4. Save the Form.
5. Check where it is restricting the form submission according to specified time or not in both ajax and non-ajax submission.

Types of changes:

• Bug fix (non-breaking change which fixes an issue)
• Enhancement (modification of the currently available functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully ran tests with your changes locally?
• Have you updated the documentation accordingly?

Changelog entry

Tweak - Enable minimum time for form submission

[NirajChaudhary143]

LGTM 👍

[MILAN88888]

LGTM 👍

[deepench]

LGTM 👍

[Sanjuacharya]

LGTM 👍

[joshianup1]

LGTM 👍