initial import of extension API and SDK as well as auto-loading

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40303

plugins/include/core.inc

@@ -0,0 +1,27 @@
+#if defined _core_included
+ #endinput
+#endif
+#define _core_included
+
+#define SOURCEMOD_PLUGINAPI_VERSION		1
+struct PlVers
+{
+	version,
+};
+
+public PlVers:__version = 
+{
+	version = SOURCEMOD_PLUGINAPI_VERSION,
+};
+
+struct Extension
+{
+	const String:name[],	/* Short name */
+	const String:file[],	/* Default file name */
+	bool:autoload,			/* Whether or not to auto-load */
+	bool:required,			/* Whether or not to require */
+};
+
+#define AUTOLOAD_EXTENSIONS
+#define REQUIRE_EXTENSIONS
+

plugins/include/sourcemod.inc

@@ -16,10 +16,10 @@ struct Plugin
    const String:url[],			/* Plugin URL */
 };
 
+#include <core>
 #include <float>
 #include <handles>
 #include <string>
-#include <files>
 
 /**
  * Declare this as a struct in your plugin to expose its information.