This is a huge commit, it does following things: (#1942)

1. Remove ks-iam standalone binary, move it to ks-apiserver
2. Generate all devops apis inside kubesphere repository, no need to
import s2ioperator.
3. Reorganize ldap code, make it more flexible to use.

vendor/sigs.k8s.io/controller-runtime/SECURITY_CONTACTS

@@ -1,15 +0,0 @@
-# Defined below are the security contacts for this repo.
-#
-# They are the contact point for the Product Security Team to reach out
-# to for triaging and handling of incoming issues.
-#
-# The below names agree to abide by the
-# [Embargo Policy](https://github.com/kubernetes/sig-release/blob/master/security-release-process-documentation/security-release-process.md#embargo-policy)
-# and will be removed and replaced if they violate that agreement.
-#
-# DO NOT REPORT SECURITY VULNERABILITIES DIRECTLY TO THESE NAMES, FOLLOW THE
-# INSTRUCTIONS AT https://kubernetes.io/security/
-
-directxman12
-pwittrock
-droot