Option template

An AngularJS HTML template rendered for each option with the following variables in local scope:

Name Type	Return type	Description
`$index`	`(number)`	option index
`isSelected`	`(boolean)`	`true` if an option is selected
`disabled`	`(boolean)`	`true` if Select field is disabled
`name`	`(string)`	auto-generated unique name of the Select field
`value`	`(string)`	option value
`text`	`(string)`	option label
`option`	`(object)`	option object