Generate input validation for form fields using input attributes from HTML

[crhntr]

Given a form

{{define `ParseInputs[UpdateProfile]`}}
<form id="update-profile">
  <input type="text" name="first-name" required>
  <input type="date" name="favorite-holiday" data-time-format="2006-01-02">
</form>
{{end}}

Muxt should generate and add it to template_routes.go

type UpdateProfile struct{
  FirstName       string    `name:"first-name"`
  FavoriteHoliday time.time `name:"favorite-holiday"`
}

Support input types

input type	Go type first draft	Go type someday
checkbox	bool
color	string	color.Color
date	string	time.Time
datetime-local	string	time.Time: use data-time-format to parse the string
email	string	string
file		multipart.File
hidden	string	use data-type
image
month	string	time.Time: use data-time-format to parse the string
number	string	use data-type; if step is an int, use int otherwise use float64
password	string	use data-type
radio	string	use data-type
range	string	use data-types; if step is an int, use int otherwise use float64
search	string	use data-type
tel	string	use data-type
text	string	use data-type
time	string	time.Time: use data-time-format to parse the string
url	url.URL
week	string	use data-time-format and parse time.Time

Initially add validation logic for:

• max f033287
• min c9e60f9
• pattern df3065d
• maxlength
• minlength
• list
• multiple
• required
• step
• type
• value

[crhntr]

consider outputting tags compatible with https://github.com/asaskevich/govalidator