rearrange source/header files for compatibility with CocoaPods Framework structure

ios/include/PolyvoxFilamentApi.h

@@ -0,0 +1,70 @@
+#ifndef _POLYVOX_FILAMENT_API_H
+#define _POLYVOX_FILAMENT_API_H
+
+#include "ResourceBuffer.hpp"
+
+typedef struct ResourceBuffer ResourceBuffer;
+
+//ResourceBuffer create_resource_buffer(const void* data, const uint32_t size, const uint32_t id);
+void* filament_viewer_new(void* texture, void* loadResource, void* freeResource);
+void* filament_viewer_delete(void* viewer);
+void set_background_image(void* viewer, const char* path);
+void set_background_image_position(void* viewer, float x, float y, bool clamp);
+void load_skybox(void* viewer, const char* skyboxPath);
+void load_ibl(void* viewer, const char* iblPath);
+void remove_skybox(void* viewer);
+void remove_ibl(void* viewer);
+int32_t add_light(void* viewer, uint8_t type, float colour, float intensity, float posX, float posY, float posZ, float dirX, float dirY, float dirZ, bool shadows);
+void remove_light(void* viewer, int32_t entityId);
+void clear_lights(void* viewer);
+void* load_glb(void* viewer, const char* assetPath);
+void* load_gltf(void* viewer, const char* assetPath, const char* relativePath);
+bool set_camera(void* viewer, void* asset, const char* nodeName);
+void render(void* viewer, uint64_t frameTimeInNanos);
+void destroy_swap_chain(void* viewer);
+void set_frame_interval(void* viewer, float interval);
+void* get_renderer(void* viewer);
+void update_viewport_and_camera_projection(void* viewer, int width, int height, float scaleFactor);
+   
+void scroll_begin(void* viewer);
+void scroll_update(void* viewer, float x, float y , float z);
+void scroll_end(void* viewer);
+    
+void grab_begin(void* viewer, float x, float y, bool pan);
+void grab_update(void* viewer, float x, float y);
+void grab_end(void* viewer);
+
+void apply_weights(void* asset, float* const weights, int count);
+    
+void animate_weights(void* asset, float* data, int numWeights, int numFrames,  float frameRate);
+    
+void play_animation(void* asset, int index, bool loop, bool reverse);
+void stop_animation(void* asset, int index);
+
+int get_animation_count(void* asset);
+    
+void get_animation_name(void* asset, char* const outPtr, int index);
+
+void get_target_name(void* asset, const char* meshName, char* const outPtr, int index );
+
+int get_target_name_count(void* asset, const char* meshName);
+    
+void remove_asset(void* viewer, void* asset);
+    
+void clear_assets(void* viewer);
+    
+void load_texture(void* asset, const char* assetPath, int renderableIndex);
+void set_texture(void* asset);
+    
+void transform_to_unit_cube(void* asset);
+    
+void set_position(void* asset, float x, float y, float z);
+void set_rotation(void* asset, float rads, float x, float y, float z);
+void set_scale(void* asset, float scale);
+
+void set_camera_position(void* viewer, float x, float y, float z);
+void set_camera_rotation(void* viewer, float rads, float x, float y, float z);
+void set_camera_focal_length(void* viewer, float focalLength);
+void set_camera_focus_distance(void* viewer, float focusDistance);
+      
+#endif