initial commit

ready for testing
replaced & deleted some commands

- replaced "which" with "type -P"
- removed wrongly used "exec"
refactored colors

- fixed color escape sequences
Revert "refactored colors"

This reverts commit 39149829601c3b2a60a32789bb7d6f72a0b7dcfc.
Create README.md
Update README.md
Update README.md
Create LICENSE.md
Create .gitignore