feat: support validation of array values in URL query parameters

[almas1992]

close #286

v := validate.New(map[string][]string{
	"date": {"2023-03", "2023-04"},
})

v.StringRule("date", "required|array|len:2")
v.StringRule("date.*", "required|date:2006-01")

if v.Validate() {
	fmt.Println(v.SafeData())
} else {
	fmt.Println(v.Errors)
}

Print:

map[date:[2023-03 2023-04] date.*:[2023-03 2023-04]]

[coveralls]

Pull Request Test Coverage Report for Build 14032124049

Details

• 6 of 6 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.003%) to 96.737%

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Totals
Change from base Build 13689661991:	0.003%
Covered Lines:	2935
Relevant Lines:	3034

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💛 - Coveralls