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/Atom/RPI/Code/Source/RPI.Reflect/Model/ModelAsset.cpp

@@ -96,7 +96,7 @@ namespace AZ
             const AZ::Vector3& rayStart, const AZ::Vector3& rayDir, bool allowBruteForce,
             float& distanceNormalized, AZ::Vector3& normal) const
         {
-            AZ_PROFILE_FUNCTION(AzRender);
+            AZ_PROFILE_FUNCTION(RPI);
 
             if (!m_modelTriangleCount)
             {