i18n solution for prompts messages

[Yordan-Ramchev]

Is your feature request related to a problem? Please describe.

• vuejs/create-vue@8fbe012
• feat: print warning messages for unsupported locale
• feat: add invalid package name message translation (https://github.com/vuejs/create-vue/pull/357[)](https://github.com/vuejs/create-vue/commit/55ccea8880dccf1013ded12200e3759ddb4c1bba)
• feat: add hint message translation (https://github.com/vuejs/create-vue/pull/372[)](https://github.com/vuejs/create-vue/commit/57fef55afc84678a47b3dc8e8a24ea567ce1a2e7)

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