No longer finding .tfzignore recursively

Includes #18 (issue: #14), which is a breaking change and no longer find .tfzignore file recursively from current working directory, all the way back to the root directory, to find the first .tfzignore file it manages to do so.

Instead it only accepts .tfzignore file, and if missing, the command essentially becomes terraform destroy.

As such, if any solution assumes that there is some shared .tfzignore file across the repository, this would begin to fail. Individual .tfzignore on each terraform directory must be provided (which is likely to be the better practice also).

Also includes improvements from #16 (ASCII print fix for Windows) and #13 (incorrect verbose print).