UT NE A17

- nothing major, just reworks and preparations for the new rebuild code
- added try / catch bad_alloc to prevent crashes during decompression of
malformed Tiano/EFI11 compressed data

common/types.h

@@ -42,7 +42,6 @@ namespace Types {
         Volume,
         File,
         Section,
-        Signature,
         FreeSpace
     };
 }
@@ -71,7 +70,8 @@ namespace Subtypes {
         GbeRegion,
         MeRegion,
         BiosRegion,
-        PdrRegion
+        PdrRegion,
+        EcRegion
     };
 
     enum PaddingSubtypes {
@@ -79,11 +79,6 @@ namespace Subtypes {
         OnePadding,
         DataPadding
     };
-
-    enum SignatureSubtypes {
-        UefiSignature = 120,
-        Pkcs7Signature
-    };
 };
 
 // *ToQString conversion routines