Move etcd, logger, crypto into their own packages (#8366)

- Deprecates _MINIO_PROFILER, `mc admin profile` does the job
- Move ENVs to common location in cmd/config/

cmd/crypto/vault.go

@@ -199,6 +199,11 @@ func (v *vaultService) authenticate() (err error) {
 	return
 }
 
+// KeyID - vault configured keyID
+func (v *vaultService) KeyID() string {
+	return v.config.Key.Name
+}
+
 // GenerateKey returns a new plaintext key, generated by the KMS,
 // and a sealed version of this plaintext key encrypted using the
 // named key referenced by keyID. It also binds the generated key