BaseTools: Rename String to StringUtils.

For case-insensitive file systems, edk2 String.py collides with the
Python string.py, which results in build errors. This,for example,
applies to building via the Windows Subsystem for Linux from a
DriveFS file system. This patch renames String to StringUtils to
prevent conflicts for case-insensitive file systems.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/Python/Eot/Eot.py

@@ -18,7 +18,7 @@ import Common.LongFilePathOs as os, time, glob
 import Common.EdkLogger as EdkLogger
 import EotGlobalData
 from optparse import OptionParser
-from Common.String import NormPath
+from Common.StringUtils import NormPath
 from Common import BuildToolError
 from Common.Misc import GuidStructureStringToGuidString, sdict
 from InfParserLite import *

BaseTools/Source/Python/Eot/InfParserLite.py

@@ -19,7 +19,7 @@ import Common.EdkLogger as EdkLogger
 from Common.DataType import *
 from CommonDataClass.DataClass import *
 from Common.Identification import *
-from Common.String import *
+from Common.StringUtils import *
 from Parser import *
 import Database
 

BaseTools/Source/Python/Eot/Parser.py

@@ -19,9 +19,9 @@ import Common.LongFilePathOs as os, re
 import Common.EdkLogger as EdkLogger
 from Common.DataType import *
 from CommonDataClass.DataClass import *
-from Common.String import CleanString, GetSplitValueList, ReplaceMacro
+from Common.StringUtils import CleanString, GetSplitValueList, ReplaceMacro
 import EotGlobalData
-from Common.String import GetSplitList
+from Common.StringUtils import GetSplitList
 from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## PreProcess() method