Add AZ_BUDGET_DEFINE/AZ_BUDGET_DECLARE and remove driller

NOTE: The memory driller is still intact for now to avoid needing to
modify allocators, but the frame/cpu portions of driller and the
standalone executable are now gone.

Signed-off-by: Jeremy Ong <jcong@amazon.com>

Gems/ScriptEvents/Code/Source/ScriptEventsSystemComponent.cpp

@@ -26,6 +26,8 @@
 #include <ScriptEvents/ScriptEventDefinition.h>
 #include <ScriptEvents/ScriptEventFundamentalTypes.h>
 
+AZ_DEFINE_BUDGET(ScriptCanvas);
+
 namespace ScriptEvents
 {
     void ScriptEventsSystemComponent::Reflect(AZ::ReflectContext* context)