Add sdl3_error.odin

vendor/sdl3/sdl3_error.odin

@@ -0,0 +1,17 @@
+package sdl3
+
+import "core:c"
+
+@(default_calling_convention="c", link_prefix="SDL_")
+foreign lib {
+	SetError    :: proc(fmt: cstring, #c_vararg args: ..any) -> bool ---
+	SetErrorV   :: proc(fmt: cstring, ap: c.va_list) -> bool ---
+	@(require_results)
+	OutOfMemory :: proc() -> bool ---
+	@(require_results)
+	GetError    :: proc() -> cstring ---
+	ClearError  :: proc() -> bool ---
+}
+
+Unsupported       :: proc "c" ()               -> bool { return SetError("That operation is not supported")  }
+InvalidParamError :: proc "c" (param: cstring) -> bool { return SetError("Parameter '%s' is invalid", param) }