BaseTools: Enhance the check for numeric opcode with EFI_IFR_DISPLAY_INT_DEC attribute.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Aaron Pop <Aaron.Pop@congatec.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17344 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/C/VfrCompile/VfrFormPkg.h

@@ -310,6 +310,10 @@ public:
   VOID UpdateHeader (IN EFI_IFR_OP_HEADER *Header) {
     mHeader = Header;
   }
+
+  UINT8 GetOpCode () {
+    return mHeader->OpCode;
+  }
 };
 
 extern UINT8 gScopeCount;
@@ -1359,6 +1363,10 @@ public:
     }
     return VFR_RETURN_SUCCESS;
   }
+
+  UINT8 GetNumericFlags () {
+    return mNumeric->Flags;
+  }
 };
 
 class CIfrOneOf : public CIfrObj, public CIfrOpHeader, public CIfrQuestionHeader, public CIfrMinMaxStepData {