Sample apps code moved to [samples-is](https://github.com/wso2/samples-is)

The following samples were migrated from this directory.
1. Authenticators
2. Identity-mgt
3. Microprofile
4. OAuth
5. OAuth2
6. Passive-sts
7. SCIM
8. SSO
9. STS
10. User-mgt
11. Workflow
12. XACML
