Split vulkan_base into smaller units

Closes #30. This is a basic refactoring of the graphics module, so
everything won't be in single file.

graphics/src/vulkan_pipeline.hpp

@@ -0,0 +1,43 @@
+#ifndef RSE_VULKAN_PIPELINE_HPP
+#define RSE_VULKAN_PIPELINE_HPP
+
+#include <vector>
+#include <vulkan/vulkan.hpp>
+
+#include "vulkan_commons.hpp"
+
+namespace rse::graphics::vulkanbase
+{
+
+/**
+ * @brief Create a graphics pipeline
+ *
+ * @param vulkan_state
+ * @return uint8_t
+ */
+uint8_t create_pipeline(VulkanState& vulkan_state);
+
+/**
+ * @brief Cleanup swapchain
+ *
+ * @param vulkan_state
+ */
+void cleanup_swapchain(VulkanState& vulkan_state);
+
+/**
+ * @brief Recreates swapchain
+ *
+ * @param vulkan_state
+ */
+void recreateSwapchain(VulkanState& vulkan_state);
+
+/**
+ * @brief Destroy all vulkan pipeline objects
+ *
+ * @param vulkan_state
+ */
+void destroy_pipeline(VulkanState& vulkan_state);
+
+}
+
+#endif