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>

dCommon/dEnums/MissionState.h

@@ -6,7 +6,7 @@
 /**
  * Represents the possible states a mission can be in
  */
-enum class MissionState : int {
+enum class MissionState : int32_t {
 	/**
 	 * The mission state is unknown
 	 */

dCommon/dEnums/eMovementPlatformState.h

@@ -0,0 +1,16 @@
+#ifndef __EMOVEMENTPLATFORMSTATE__H__
+#define __EMOVEMENTPLATFORMSTATE__H__
+
+#include <cstdint>
+
+/**
+ * The different types of platform movement state, supposedly a bitmap
+ */
+enum class eMovementPlatformState : uint32_t
+{
+	Moving = 0b00010,
+	Stationary = 0b11001,
+	Stopped = 0b01100
+};
+
+#endif  //!__EMOVEMENTPLATFORMSTATE__H__