Add "GetFileInfoByHandle" function to (many) file systems

Core/FileSystems/ISOFileSystem.h

@@ -39,6 +39,7 @@ public:
 	size_t   ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) override;
 	size_t   SeekFile(u32 handle, s32 position, FileMove type) override;
 	PSPFileInfo GetFileInfo(std::string filename) override;
+	PSPFileInfo GetFileInfoByHandle(u32 handle) override;
 	bool     OwnsHandle(u32 handle) override;
 	int      Ioctl(u32 handle, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 outlen, int &usec) override;
 	PSPDevType DevType(u32 handle) override;
@@ -136,6 +137,9 @@ public:
 	PSPFileInfo GetFileInfo(std::string filename) override {
 		return isoFileSystem_->GetFileInfo("");
 	}
+	PSPFileInfo GetFileInfoByHandle(u32 handle) override {
+		return isoFileSystem_->GetFileInfoByHandle(handle);
+	}
 	bool     OwnsHandle(u32 handle) override {
 		return isoFileSystem_->OwnsHandle(handle);
 	}