feat(gx): add incomplete 'CGxDeviceGLSDL' (#2)

* chore(build): add vendored SDL 3.0.0 library

* chore(build): add vendored glew-cmake-2.2.0 library

* feat(console): in the presence of -opengl launch flag, change GxApi to OpenGl

* feat(gx): add uncompleted CGxDeviceGLSDL targeting Windows and Linux

* chore(build): change SDL3 linkage from shared (bad) to to static (good)

vendor/sdl-3.0.0/src/joystick/dummy/SDL_sysjoystick.c

@@ -0,0 +1,150 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_JOYSTICK_DUMMY) || defined(SDL_JOYSTICK_DISABLED)
+
+/* This is the dummy implementation of the SDL joystick API */
+
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+static int DUMMY_JoystickInit(void)
+{
+    return 0;
+}
+
+static int DUMMY_JoystickGetCount(void)
+{
+    return 0;
+}
+
+static void DUMMY_JoystickDetect(void)
+{
+}
+
+static const char *DUMMY_JoystickGetDeviceName(int device_index)
+{
+    return NULL;
+}
+
+static const char *DUMMY_JoystickGetDevicePath(int device_index)
+{
+    return NULL;
+}
+
+static int DUMMY_JoystickGetDevicePlayerIndex(int device_index)
+{
+    return -1;
+}
+
+static void DUMMY_JoystickSetDevicePlayerIndex(int device_index, int player_index)
+{
+}
+
+static SDL_JoystickGUID DUMMY_JoystickGetDeviceGUID(int device_index)
+{
+    SDL_JoystickGUID guid;
+    SDL_zero(guid);
+    return guid;
+}
+
+static SDL_JoystickID DUMMY_JoystickGetDeviceInstanceID(int device_index)
+{
+    return -1;
+}
+
+static int DUMMY_JoystickOpen(SDL_Joystick *joystick, int device_index)
+{
+    return SDL_SetError("Logic error: No joysticks available");
+}
+
+static int DUMMY_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
+{
+    return SDL_Unsupported();
+}
+
+static int DUMMY_JoystickRumbleTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
+{
+    return SDL_Unsupported();
+}
+
+static Uint32 DUMMY_JoystickGetCapabilities(SDL_Joystick *joystick)
+{
+    return 0;
+}
+
+static int DUMMY_JoystickSetLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
+{
+    return SDL_Unsupported();
+}
+
+static int DUMMY_JoystickSendEffect(SDL_Joystick *joystick, const void *data, int size)
+{
+    return SDL_Unsupported();
+}
+
+static int DUMMY_JoystickSetSensorsEnabled(SDL_Joystick *joystick, SDL_bool enabled)
+{
+    return SDL_Unsupported();
+}
+
+static void DUMMY_JoystickUpdate(SDL_Joystick *joystick)
+{
+}
+
+static void DUMMY_JoystickClose(SDL_Joystick *joystick)
+{
+}
+
+static void DUMMY_JoystickQuit(void)
+{
+}
+
+static SDL_bool DUMMY_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out)
+{
+    return SDL_FALSE;
+}
+
+SDL_JoystickDriver SDL_DUMMY_JoystickDriver = {
+    DUMMY_JoystickInit,
+    DUMMY_JoystickGetCount,
+    DUMMY_JoystickDetect,
+    DUMMY_JoystickGetDeviceName,
+    DUMMY_JoystickGetDevicePath,
+    DUMMY_JoystickGetDevicePlayerIndex,
+    DUMMY_JoystickSetDevicePlayerIndex,
+    DUMMY_JoystickGetDeviceGUID,
+    DUMMY_JoystickGetDeviceInstanceID,
+    DUMMY_JoystickOpen,
+    DUMMY_JoystickRumble,
+    DUMMY_JoystickRumbleTriggers,
+    DUMMY_JoystickGetCapabilities,
+    DUMMY_JoystickSetLED,
+    DUMMY_JoystickSendEffect,
+    DUMMY_JoystickSetSensorsEnabled,
+    DUMMY_JoystickUpdate,
+    DUMMY_JoystickClose,
+    DUMMY_JoystickQuit,
+    DUMMY_JoystickGetGamepadMapping
+};
+
+#endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */