Dynamite: validate more types

[Leptopoda]

Dynamite should support validating more strict types:

• array lengths #Support specified length for arrays. #1056
  • minItems
  • maxItems
  • uniqueItems (maybe utilize a Set for this)
• number:
  • minimum/exclusiveMinimum
  • maximum/exclusiveMaximum
  • multipleOf
• enum
  • check the pattern at build time (fix(dynamite): Fix pattern check for enums #1313)

This can all fit nicely into: https://github.com/nextcloud/neon/blob/main/packages/dynamite/dynamite/lib/src/helpers/pattern_check.dart. We must not only consider validating these schemas inside objects but also when uses as a parameter in an operation.

[provokateurin]

String enums with patterns are broken:

{
	"type": "string",
	"pattern": "^a$",
	"enum": [
		"a",
		"b"
	]
}

The pattern match method is called but the enum it is given is not the expected String.

[provokateurin]

Required keys of objects are not checked to be present in the properties keys.