Option to clear cache on native project

[nchrysis]

Feature Request

There should be an option through cli to delete ~/.turtle/workingDir or clear workingDir/{platform}/sdk#/packages and/or node_modules

Motivation Behind Feature - Feature Description

Having installed a plugin previously (with expo install) it didn't work for me in the end, so I removed it. However when testing something else the previously removed plugin was crashing my app unexpectedly as I found out from adb log while the app was running (lateinit property {pluginname} has not been initialized). This behaviour happened after a GoogleSignin native activity popped up and upon dismissing it, my app's activity tried to come to foreground and then it crashed. So after hours of searching for the cause I found that if I remove ~/.turtle/workingDir and re-run turtle build:android there would be no crashes when reproducing a specific app flow.

Alternatives or Workarounds

Manually deleting node_modules from the project directory and also the workingDir in ~/.turtle/workingDir and re-installing and re-building.