Merge pull request #10996 from RussWhitehead/doLogout

HPCC-19384 HTPasswd security manager to implement logout

Reviewed-By: Rodrigo Pastrana <rodrigo.pastrana@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>

system/security/plugins/htpasswdSecurity/htpasswdSecurity.cpp

@@ -227,6 +227,10 @@ protected:
         return SecAccess_Full;//grant full access to authenticated users
     }
 
+    bool logoutUser(ISecUser & user) override
+    {
+        return true;
+    }
 private:
 
 	void initAPR()