fix(helpers_yo): use --silent argument instead of ugly redirection

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
style(helpers_yo): unindent

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
refactor(helpers_yo): merge __yo_getSuggestion into __yo_getGenerators

The function is here to provide a list of suggestions (no more condition).

Don't need to request each suggestions' list anymore.

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
feat(helpers_yo): add __yo_getLocalGenerators for local generators

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
docs(__yo_setGlobalGenerators): update @description and @return

* Description explain there is a file that store global generators list
* return void

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
docs(__yo_setGlobalGenerators): update @param text

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>
chore(helpers_yo): clean dummy generator

Signed-off-by: Édouard Lopez <dev+git@edouard-lopez.com>