Moved lib_runner's drive system into the core of the lang

source/toy_drive_system.h

@@ -0,0 +1,12 @@
+#include "toy_common.h"
+
+#include "toy_literal.h"
+#include "toy_interpreter.h"
+
+//file system API - these need to be set by the host
+TOY_API void Toy_initDriveSystem();
+TOY_API void Toy_freeDriveSystem();
+
+//file system API - for use with libs
+TOY_API void Toy_setDrivePath(char* drive, char* path);
+TOY_API Toy_Literal Toy_getDrivePathLiteral(Toy_Interpreter* interpreter, Toy_Literal* drivePathLiteral);