[Feature Request] TokenCache should create the cache file if it doesn't exist

[quynhduongphl]

Is your feature request related to a problem? Please describe.
The credential's New(..., WithCache(...)) will fail if the file path provided in the TokenCache declaration does not exist.

Describe the solution you'd like
TokenCache will create the file if it doesn't exist already rather than throwing "file does not exist" error

Describe alternatives you've considered
Any other better way to handle this than throwing "File does not exist" error

Additional context