(feature) Length Validation for TextInput Fields

[eudson]

Length based validation for textInputField component.

• This adds new validation to the form engine lib, this will allow users to specify a min and max character length.
• My work includes tests
• Screenshot of working validation

[donaldkibet]

🚀 LGTM just a nit

[donaldkibet]

for TextInput i feel having the name minLength and maxLength is more descriptive of what we want to achieve with it.

[donaldkibet]

Seem we have a problem with this validation. We need to check for scenario where the min and max length aren't defined. Check this sample example

[pirupius]

@donaldkibet let me issue a follow up PR to resolve this

[eudson]

Seem we have a problem with this validation. We need to check for scenario where the min and max length aren't defined. Check this sample example

Thanks @donaldkibet I will issue a PR