obs-transitions: Mark functions as static

These functions were mistakenly not marked as static.  They are not used
outside of their compiled object module files, therefore there's no
reason for them not to be static.

plugins/obs-transitions/transition-cut.c

@@ -10,7 +10,7 @@ static const char *cut_get_name(void *type_data)
 	return obs_module_text("CutTransition");
 }
 
-void *cut_create(obs_data_t *settings, obs_source_t *source)
+static void *cut_create(obs_data_t *settings, obs_source_t *source)
 {
 	struct cut_info *cut;
 
@@ -22,13 +22,13 @@ void *cut_create(obs_data_t *settings, obs_source_t *source)
 	return cut;
 }
 
-void cut_destroy(void *data)
+static void cut_destroy(void *data)
 {
 	struct cut_info *cut = data;
 	bfree(cut);
 }
 
-void cut_video_render(void *data, gs_effect_t *effect)
+static void cut_video_render(void *data, gs_effect_t *effect)
 {
 	struct cut_info *cut = data;
 	obs_transition_video_render(cut->source, NULL);
@@ -47,7 +47,7 @@ static float mix_b(void *data, float t)
 	return t;
 }
 
-bool cut_audio_render(void *data, uint64_t *ts_out,
+static bool cut_audio_render(void *data, uint64_t *ts_out,
 		struct obs_source_audio_mix *audio, uint32_t mixers,
 		size_t channels, size_t sample_rate)
 {

plugins/obs-transitions/transition-fade.c

@@ -15,7 +15,7 @@ static const char *fade_get_name(void *type_data)
 	return obs_module_text("FadeTransition");
 }
 
-void *fade_create(obs_data_t *settings, obs_source_t *source)
+static void *fade_create(obs_data_t *settings, obs_source_t *source)
 {
 	struct fade_info *fade;
 	char *file = obs_module_file("fade_transition.effect");
@@ -42,7 +42,7 @@ void *fade_create(obs_data_t *settings, obs_source_t *source)
 	return fade;
 }
 
-void fade_destroy(void *data)
+static void fade_destroy(void *data)
 {
 	struct fade_info *fade = data;
 	bfree(fade);
@@ -61,7 +61,7 @@ static void fade_callback(void *data, gs_texture_t *a, gs_texture_t *b, float t,
 		gs_draw_sprite(NULL, 0, cx, cy);
 }
 
-void fade_video_render(void *data, gs_effect_t *effect)
+static void fade_video_render(void *data, gs_effect_t *effect)
 {
 	struct fade_info *fade = data;
 	obs_transition_video_render(fade->source, fade_callback);
@@ -80,7 +80,7 @@ static float mix_b(void *data, float t)
 	return t;
 }
 
-bool fade_audio_render(void *data, uint64_t *ts_out,
+static bool fade_audio_render(void *data, uint64_t *ts_out,
 		struct obs_source_audio_mix *audio, uint32_t mixers,
 		size_t channels, size_t sample_rate)
 {