general: Fix missing includes.

panda/src/gobj/samplerContext.h

@@ -18,6 +18,7 @@
 #include "pandabase.h"
 
 #include "adaptiveLru.h"
+#include "simpleLru.h"
 #include "samplerState.h"
 #include "savedContext.h"
 

panda/src/gobj/samplerState.h

@@ -21,6 +21,7 @@
 #include "namable.h"
 #include "luse.h"
 #include "numeric_types.h"
+#include "bamReader.h"
 #include "config_gobj.h"
 
 class FactoryParams;

panda/src/pgraph/cullBinManager.h

@@ -20,6 +20,7 @@
 #include "cullBinEnums.h"
 #include "pointerTo.h"
 #include "pvector.h"
+#include "epvector.h"
 #include "pmap.h"
 #include "vector_int.h"
 #include "pStatCollector.h"

panda/src/pgraph/shaderPool.cxx

@@ -18,6 +18,7 @@
 #include "virtualFileSystem.h"
 #include "loader.h"
 #include "shader.h"
+#include "string_utils.h"
 
 ShaderPool *ShaderPool::_global_ptr = (ShaderPool *)NULL;