Nice-prompts

Make the chosen indicator an ascii character for better compatability

* __Fix__ some things with the number input

* __Add__ script for recording
* __Add__ a new shell script for tests
* __Update__ demo gif
* __Fix__ display in some terminal emulators
* __Update__ gitignore
* __Add__ true/false selections
* __Add__ tests for true/false selections

* __Add__ number input and validation
* __Add__ transient prompts
* __Add__ comments to code
* __Add__ tests for number input