BaseTools: DataType - cleanup list constants

remove unused ones
convert lists used for membership testing to sets
use shared ones not local ones

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

BaseTools/Source/Python/Ecc/Configuration.py

@@ -53,7 +53,7 @@ class Configuration(object):
 
         # List customized Modifer here, split with ','
         # Defaultly use the definition in class DataType
-        self.ModifierList = MODIFIER_LIST
+        self.ModifierSet = MODIFIER_SET
 
         ## General Checking
         self.GeneralCheckAll = 0