RuntimeCommonB: Make use of bitfield initializers where applicable

Given that we now target C++20, we can make use of bitfield initializers
where applicable.

Runtime/World/CScriptTargetingPoint.hpp

@@ -8,7 +8,7 @@
 namespace urde {
 class CScriptTargetingPoint : public CActor {
 private:
-  bool xe8_e4_ : 1;
+  bool xe8_e4_ : 1 = false;
   TUniqueId xea_;
   float xec_time = 0.f;