[Feature Request] Set specified version of Flutter SDK in current terminal enviroment.

[SunJenry]

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Is your feature request related to a problem? Please describe.
I want to use specified version of Flutter SDK in current terminal, but I don't want change global version or add any fvm configure file in current work dir. So, is there any way to set specified version of Flutter SDK in current terminal, and when I close the terminal , nothing happened.

Describe the solution you'd like
Input with fvm current [version name] or someother more reasonable command, this version will over write glabal default version and this only valid in current terminal.