Fix typos with codespell

Using codespell 1.14.0.

Method:
```
$ cat > ../godot-word-whitelist.txt << EOF
ang
doubleclick
lod
nd
numer
que
te
unselect
EOF
$ codespell -w -q 3 -I ../godot-word-whitelist.txt --skip="./thirdparty,*.po"
$ git diff // undo unwanted changes
```

drivers/gles2/rasterizer_scene_gles2.cpp

@@ -2341,7 +2341,7 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 						Transform sky_orientation(p_env->sky_orientation, Vector3(0.0, 0.0, 0.0));
 						state.scene_shader.set_uniform(SceneShaderGLES2::RADIANCE_INVERSE_XFORM, sky_orientation.affine_inverse() * p_view_transform);
 					} else {
-						// would be a bit weird if we dont have this...
+						// would be a bit weird if we don't have this...
 						state.scene_shader.set_uniform(SceneShaderGLES2::RADIANCE_INVERSE_XFORM, p_view_transform);
 					}
 				}
@@ -2607,7 +2607,7 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 	//push back the directional lights
 
 	if (p_light_cull_count) {
-		//harcoded limit of 256 lights
+		//hardcoded limit of 256 lights
 		render_light_instance_count = MIN(RenderList::MAX_LIGHTS, p_light_cull_count);
 		render_light_instances = (LightInstance **)alloca(sizeof(LightInstance *) * render_light_instance_count);
 		render_directional_lights = 0;
@@ -2621,7 +2621,7 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 
 			if (light->light_ptr->type == VS::LIGHT_DIRECTIONAL) {
 				render_directional_lights++;
-				//as goin in reverse, directional lights are always first anyway
+				//as going in reverse, directional lights are always first anyway
 			}
 
 			light->light_index = index;

drivers/gles2/shader_compiler_gles2.cpp

@@ -81,7 +81,7 @@ static String _opstr(SL::Operator p_op) {
 static String _mkid(const String &p_id) {
 
 	String id = "m_" + p_id;
-	return id.replace("__", "_dus_"); //doubleunderscore is reserverd in glsl
+	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }
 
 static String f2sp0(float p_float) {

drivers/gles2/shader_gles2.cpp

@@ -199,7 +199,7 @@ static void _display_error_with_code(const String &p_error, const Vector<const c
 static String _mkid(const String &p_id) {
 
 	String id = "m_" + p_id;
-	return id.replace("__", "_dus_"); //doubleunderscore is reserverd in glsl
+	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }
 
 ShaderGLES2::Version *ShaderGLES2::get_current_version() {

drivers/gles3/shader_compiler_gles3.cpp

@@ -167,7 +167,7 @@ static String _opstr(SL::Operator p_op) {
 static String _mkid(const String &p_id) {
 
 	String id = "m_" + p_id;
-	return id.replace("__", "_dus_"); //doubleunderscore is reserverd in glsl
+	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }
 
 static String f2sp0(float p_float) {

drivers/gles3/shaders/tonemap.glsl

@@ -124,7 +124,7 @@ vec4 texture2D_bicubic(sampler2D tex, vec2 uv, int p_lod) {
 #endif
 
 vec3 tonemap_filmic(vec3 color, float white) {
-	// exposure bias: input scale (color *= bias, white *= bias) to make the brighness consistent with other tonemappers
+	// exposure bias: input scale (color *= bias, white *= bias) to make the brightness consistent with other tonemappers
 	// also useful to scale the input to the range that the tonemapper is designed for (some require very high input values)
 	// has no effect on the curve's general shape or visual properties
 	const float exposure_bias = 2.0f;

drivers/unix/ip_unix.cpp

@@ -50,7 +50,7 @@
 #define _WIN32_WINNT 0x0501 // Windows XP, disable Vista API
 #include <iphlpapi.h>
 #undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600 // Reenable Vista API
+#define _WIN32_WINNT 0x0600 // Re-enable Vista API
 #else
 #include <iphlpapi.h>
 #endif // MINGW hack

drivers/unix/net_socket_posix.cpp

@@ -543,7 +543,7 @@ void NetSocketPosix::set_blocking_enabled(bool p_enabled) {
 
 void NetSocketPosix::set_ipv6_only_enabled(bool p_enabled) {
 	ERR_FAIL_COND(!is_open());
-	// This option is only avaiable in IPv6 sockets.
+	// This option is only available in IPv6 sockets.
 	ERR_FAIL_COND(_ip_type == IP::TYPE_IPV4);
 
 	int par = p_enabled ? 1 : 0;

drivers/unix/os_unix.cpp

@@ -282,7 +282,7 @@ uint64_t OS_Unix::get_ticks_usec() const {
 	uint64_t longtime = mach_absolute_time() * _clock_scale;
 #else
 	// Unchecked return. Static analyzers might complain.
-	// If _setup_clock() succeded, we assume clock_gettime() works.
+	// If _setup_clock() succeeded, we assume clock_gettime() works.
 	struct timespec tv_now = { 0, 0 };
 	clock_gettime(GODOT_CLOCK, &tv_now);
 	uint64_t longtime = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L;