BaseTools: Use absolute import in Common

Based on "futurize -f libfuturize.fixes.fix_absolute_import

Contributed-under: TianoCore Contribution Agreement 1.1
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>

BaseTools/Source/Python/Common/StringUtils.py

@@ -14,14 +14,15 @@
 ##
 # Import Modules
 #
+from __future__ import absolute_import
 import re
-import DataType
+from . import DataType
 import Common.LongFilePathOs as os
 import string
-import EdkLogger as EdkLogger
+from . import EdkLogger as EdkLogger
 
-import GlobalData
-from BuildToolError import *
+from . import GlobalData
+from .BuildToolError import *
 from CommonDataClass.Exceptions import *
 from Common.LongFilePathSupport import OpenLongFilePath as open
 from Common.MultipleWorkspace import MultipleWorkspace as mws