basti: Store configuration in ~/.basti

[bobveringa]

Feature Description

Basti currently searches for a configuration file in your current working directory up to your home directory. This is great, however sometimes when you are using basti in directories above or outside the home directory it cannot find a configuration file. The solution for this would be to always check the home directory.

This could be in a .basti directory as this also allows other information related to basti to be stored here as well as leaving room for more features in the future. The other option is to just always check for .basti.yml (or json) files in the home directory.

[bobveringa]

In #62 a use case is described where the .basti directory is used.

[BohdanPetryshyn]

Good idea! Thank you @bobveringa!

I'd start with the second option and add the dedicated directory later as needed.