Change vertex buffer handling

Previously vertex data was only in shaders. I have removed it from there
and put hardcoded vertex data into cpp source code.

include/localeVulkan.hpp

@@ -31,6 +31,8 @@ enum Errors
     VULKAN_FAILED_TO_CREATE_DEVICE,
     VULKAN_ALLOCATOR_CREATION_FAILED,
     VULKAN_COMMAND_POOL_CREATION_FAILED,
+    VULKAN_VERTEX_BUFFER_CREATION_FAILED,
+    VULKAN_VERTEX_BUFFER_MAPPING_FAILED,
     VULKAN_COMMAND_BUFFER_ALLOCATION_FAILED,
     VULKAN_SURFACE_CREATION_FAILED,
     VULKAN_SWAPCHAIN_CREATION_FAILED,
@@ -62,6 +64,10 @@ std::array<std::array<const char*, LAST_MESSAGE>, LAST_LANGUAGE> vulkanErrorMess
      "Failed to create Vulkan Memory Allocator",
      /* VULKAN_COMMAND_POOL_CREATION_FAILED */
      "Failed to create command pool",
+     /* VULKAN_VERTEX_BUFFER_CREATION_FAILED */
+     "Failed to create a vertex buffer",
+     /* VULKAN_VERTEX_BUFFER_MAPPING_FAILED */
+     "Failed to map vulkan memory buffer",
      /* VULKAN_COMMAND_BUFFER_ALLOCATION_FAILED */
      "Failed to allocate command buffers",
      /* VULKAN_SURFACE_CREATION_FAILED */

include/vulkanBase.hpp

@@ -16,9 +16,25 @@
 namespace rse::graphics::vulkanbase
 {
 
+/**
+ * @brief Initialize Vulkan backend
+ *
+ * @return uint8_t 0 on success. Status code on failure
+ */
+
+
 uint8_t initVulkan();
+
+/**
+ * @brief Deinitialize Vulkan backend
+ *
+ */
 void deinitVulkan();
 
+/**
+ * @brief Draw frame on the screen.
+ *
+ */
 void drawFrame();
 
 } /* namespace rse::graphics::vulkanbase */