file name filter

[ModProg]

• refactor: make templates module folder
• feat: file_name filter

closes #16

[dnaka91]

I'll go ahead and close this, as #16 was solved by treating the name argument as path instead (https://github.com/dnaka91/cargo-hatch/commit/60f614139ee6bb1d86c4c8d515df3f682e9013b8).

[ModProg]

I'll keep the branch around in case there should be a need to add custom filters in the future.