BaseTools/Ecc: Fix import issues

1. Complete the full path for import statement. Use "EccMain" to
replace "Ecc" for the absolute path support.
2. Fix some issues on configuration file.
3. Fix an issue of RaiseError not working in EdkLogger.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hess Chen <hesheng.chen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/Python/Ecc/Check.py

@@ -15,10 +15,10 @@ import Common.LongFilePathOs as os
 import re
 from CommonDataClass.DataClass import *
 import Common.DataType as DT
-from .EccToolError import *
-from .MetaDataParser import ParseHeaderCommentSection
-from . import EccGlobalData
-from . import c
+from Ecc.EccToolError import *
+from Ecc.MetaDataParser import ParseHeaderCommentSection
+from Ecc import EccGlobalData
+from Ecc import c
 from Common.LongFilePathSupport import OpenLongFilePath as open
 from Common.MultipleWorkspace import MultipleWorkspace as mws