format: configure clang-format to support type definitions BEGIN/END macros

.clang-format

@@ -4,6 +4,7 @@ IndentWidth: 8
 Language: Cpp
 DerivePointerAlignment: false
 PointerAlignment: Right
+ReferenceAlignment: Left
 ColumnLimit: 80
 AlignAfterOpenBracket: AlwaysBreak
 AlignConsecutiveAssignments: None
@@ -52,7 +53,9 @@ PenaltyBreakOpenParenthesis: 5
 PenaltyBreakBeforeFirstCallParameter: 5
 PenaltyIndentedWhitespace: 0
 AttributeMacros:
-  - BLUELIB_API
+  - BLUE_API
 ForEachMacros:
   - b_btree_foreach
   - b_queue_foreach
+MacroBlockBegin: "^B_.*_BEGIN$"
+MacroBlockEnd: "^B_.*_END$"