MdeModulePkg: Add PlatformVarCleanupLib library

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18295 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Library/PlatformVarCleanupLib/PlatVarCleanup.vfr

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+/** @file
+ Platform variable cleanup Formset.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "PlatVarCleanupHii.h"
+
+formset
+  guid     = VARIABLE_CLEANUP_HII_GUID,
+  title    = STRING_TOKEN(STR_ENTRY_TITLE),
+  help     = STRING_TOKEN(STR_TITLE_HELP),
+
+  varstore VARIABLE_CLEANUP_DATA,
+    varid = VARIABLE_CLEANUP_VARSTORE_ID,
+    name  = VariableCleanup,
+    guid  = VARIABLE_CLEANUP_HII_GUID;
+
+  form formid = FORM_ID_VARIABLE_CLEANUP,
+    title = STRING_TOKEN(STR_TITLE);
+
+    checkbox varid = VARIABLE_CLEANUP_DATA.SelectAll,
+      prompt   = STRING_TOKEN(STR_SELECT_ALL_PROMPT),
+      help     = STRING_TOKEN(STR_SELECT_ALL_HELP),
+      flags    = INTERACTIVE,
+      key      = SELECT_ALL_QUESTION_ID,
+    endcheckbox;
+
+    label LABEL_START;
+    label LABEL_END;
+
+  endform;
+endformset;