Implement CLI hot-reload

[qhello]

Latest fresko version removed dependency to shelljs 🚀

However, if one's project is relying on fresko to automatically run npm/yarn/pnpm install on a project that just got upgraded to latest fresko version (which happened @sline-io today), developers will run into this issue:

Error: Cannot find module '/XXX/node_modules/shelljs/src/exec-child.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
    at Function.Module._load (internal/modules/cjs/loader.js:746:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

This is due to the fact that the fresko CLI currently running into the developer's terminal was still the version which had the dependency to shelljs - but during the CLI run the fresko dependencies changed - removing here the path to shelljs

Implementing a hot-reload feature into fresko would solve this issue, here's how it'd work:

1. fresko is ran using git hooks - will save it's package version in memory
2. each time a prompt's command is ran, we will check again if fresko package version changed
3. if package version got changed, fresko would exit & reload itself, using the new version that just got installed
4. optional: find a way to recover the CLI current state, to avoid re-starting the prompt sequence from the beginning

[qhello]

though not a perfect solution, 6f16fec will help mitigate this issue, as now the CLI will ship fully bundled 🎸