dGame Precompiled header improvements (#876)

* moving branch

* Add deleteinven slash command

* Change name of BRICKS_IN_BBB

* Use string_view instead of strcmp

* Clean up include tree

* Remove unneeded headers from PCH files

Removes unneeded headers from pre-compiled headers.  This increases compile time, however reduces development time for most files.

* Update Entity.h

* Update EntityManager.h

* Update GameMessages.cpp

* There it compiles now

Co-authored-by: Aaron Kimbrell <aronwk.aaron@gmail.com>

dGame/dComponents/CharacterComponent.cpp

@@ -13,6 +13,7 @@
 #include "VehiclePhysicsComponent.h"
 #include "GameMessages.h"
 #include "Item.h"
+#include "AMFFormat.h"
 
 CharacterComponent::CharacterComponent(Entity* parent, Character* character) : Component(parent) {
 	m_Character = character;