Copy JKernel (#126)

* start JSystem

* JKRAram and JUTGamePad

* started heap and thread

* more JKernel

* mostly finished JKernel

* delete unused asm

* JKRFileFinder

* delete unused asm and match findNextFile

* format

* fix mtx_vec

include/JSystem/JKernel/JKRFile.h

@@ -1,6 +1,30 @@
 #ifndef JKRFILE_H
 #define JKRFILE_H
 
+#include "JSystem/JKernel/JKRDisposer.h"
 #include "dolphin/types.h"
 
+class JKRFile : public JKRDisposer {
+public:
+    JKRFile() : mIsAvailable(false) {}
+    virtual ~JKRFile() {}
+
+    s32 read(void*, long, long);
+
+    bool isAvailable() const { return mIsAvailable; }
+
+public:
+    /* vt[03] */ virtual bool open(const char*) = 0;
+    /* vt[04] */ virtual void close() = 0;
+    /* vt[05] */ virtual s32 readData(void*, s32, s32) = 0;
+    /* vt[06] */ virtual s32 writeData(const void*, s32, s32) = 0;
+    /* vt[07] */ virtual s32 getFileSize() const = 0;
+
+protected:
+    /* 0x00 */  // vtable
+    /* 0x04 */  // JKRDisposer
+    /* 0x18 */ bool mIsAvailable;
+    /* 0x19 */ u8 field_0x19[3];
+};
+
 #endif /* JKRFILE_H */