Add client entity class headers.

* Remove 'isreplay' from player_info_s.

Signed-off-by: aixxe <me@aixxe.net>

include/cstrike/Classes/CBaseHandle.h

@@ -0,0 +1,14 @@
+#pragma once
+
+class CBaseHandle {
+	public:
+		inline bool IsValid() const {
+			return m_Index != INVALID_EHANDLE_INDEX;
+		}
+
+		inline int GetEntryIndex() const {
+			return m_Index & ENT_ENTRY_MASK;
+		}
+
+		unsigned long m_Index;
+};