Add vue/valid-define-emits rule

[ota-meshi]

This PR adds vue/valid-define-props rule.

vue/valid-define-emits rule reports defineEmits compiler macros in the following cases:

• defineEmits are referencing locally declared variables.
• defineEmits has both a literal type and an argument. e.g. defineEmits<(e: 'foo')=>void>(['bar'])
• defineEmits has been called multiple times.
• Custom events are defined in both defineEmits and export default {}.
• Custom events are not defined in either defineEmits or export default {}.

Related to #1248