Allow default provider config for tenants

I am using the python admin SDK to create tenants, but I can not manage the "default" providers. Only add new SAML and OIDC providers.

```python
tenant = tenant_mgt.create_tenant(
tenant_name,
allow_password_sign_up=True,
enable_email_link_sign_in=False,
app=app,
)

auth = tenant_mgt.auth_for_tenant(tenant.tenant_id)

# No way to do this ???
providers = auth.get_providers()
# enable/setup Google provider

```

Now I have to go in the UI and click a button. Which defeats the purposes of creating the tenant programmatically if I still have to set it up by hand.

This is what I am trying to change:

EDIT:
You can set `allow_password_sign_up=True` and it will enable Email/Password, but unsure how to handle the other Providers. We use the Google Provider as an internal app for our own login as we are on Google Workspace.