Implement basic structure for combat system and refactor code

Assets/Settings/UniversalRP.asset

@@ -12,8 +12,8 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: bf2edee5c58d82540a51f03df9d42094, type: 3}
   m_Name: UniversalRP
   m_EditorClassIdentifier: 
-  k_AssetVersion: 12
-  k_AssetPreviousVersion: 12
+  k_AssetVersion: 13
+  k_AssetPreviousVersion: 13
   m_RendererType: 1
   m_RendererData: {fileID: 0}
   m_RendererDataList:
@@ -53,6 +53,7 @@ MonoBehaviour:
   m_AdditionalLightsShadowResolutionTierHigh: 2048
   m_ReflectionProbeBlending: 0
   m_ReflectionProbeBoxProjection: 0
+  m_ReflectionProbeAtlas: 1
   m_ShadowDistance: 50
   m_ShadowCascadeCount: 1
   m_Cascade2Split: 0.25
@@ -78,6 +79,7 @@ MonoBehaviour:
   m_UseAdaptivePerformance: 1
   m_ColorGradingMode: 0
   m_ColorGradingLutSize: 32
+  m_AllowPostProcessAlphaOutput: 0
   m_UseFastSRGBLinearConversion: 0
   m_SupportDataDrivenLensFlare: 1
   m_SupportScreenSpaceLensFlare: 1
@@ -108,6 +110,7 @@ MonoBehaviour:
   m_PrefilterDebugKeywords: 0
   m_PrefilterWriteRenderingLayers: 0
   m_PrefilterHDROutput: 0
+  m_PrefilterAlphaOutput: 0
   m_PrefilterSSAODepthNormals: 0
   m_PrefilterSSAOSourceDepthLow: 0
   m_PrefilterSSAOSourceDepthMedium: 0
@@ -125,8 +128,15 @@ MonoBehaviour:
   m_PrefilterSoftShadowsQualityHigh: 0
   m_PrefilterSoftShadows: 0
   m_PrefilterScreenCoord: 0
+  m_PrefilterScreenSpaceIrradiance: 0
   m_PrefilterNativeRenderPass: 0
   m_PrefilterUseLegacyLightmaps: 0
+  m_PrefilterBicubicLightmapSampling: 0
+  m_PrefilterReflectionProbeRotation: 0
+  m_PrefilterReflectionProbeBlending: 0
+  m_PrefilterReflectionProbeBoxProjection: 0
+  m_PrefilterReflectionProbeAtlas: 0
+  m_PrefilterPointSamplingUpsampling: 0
   m_ShaderVariantLogLevel: 0
   m_ShadowCascades: 0
   m_Textures: