feature(create) - re-generate ws config files on bit create

[GiladShoham]

Proposed Changes

• Install missing envs upon bit create (if it's the first component created from this env and the env is not available yet, we will install it).
• New slot OnComponentCreate is now available from the Generator aspect
• Automatically re-generate workspace config files (tsconfig, eslint config, prettier config) when creating new components.
• Adding new config to enable/disable re-generate config files during bit create

  "teambit.workspace/workspace-config-files": {
    "enableWorkspaceConfigWrite": true
  },

• This is disabled by default (for old workspaces), but added as enabled to a new workspace.jsonc during bit init