- [x] create `@cliBefore(functionName)` decorator. the function itself will get the `@cliBeforeEach` result object
- [ ] create `@cliAfter(functionName)` decorator. the function itself will get the `@cliAfterEach` result object
- [ ] generate a mock cli library

### generate a mock cli library
This will generate an `<cli_name>-mock.js` library with the following methods:

- `<cli_name>-mock.inject(parentElement, onboardingFlowName)` - will inject a terminal object with the onboarding flow loaded. if no onboardingFlowName is given, runs the basic mock flow (supports help output and shows general output if defined)
- `<cli_name>-mock.defineOnboarding(name, flow)` - will create an onboarding flow. the `flow` param is an array of objects. each object is a step with the following attributes:

```javascript
const firstStep = {
  description: 'welcome! to start, please run "myCli configure myEmail@gmail.com"',
  forcedRun: 'myCli configure myEmail@gmail.com'
  output: 'this is the example output!'
};
```
  then, the onboarding will be less generic and guide the user to run a speicific flow.
  The only other functions the user can run in this mode besides the defined function, is the `--help` functions