setup script improvements, automatically clone xmrig-hac and build for multiple platforms

libs/libsodium-1.0.18/builds/msvc/properties/LTCG.props

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <_PropertySheetDisplayName>Link Time Code Generation Library</_PropertySheetDisplayName>
+  </PropertyGroup>
+  
+  <ImportGroup Label="PropertySheets">
+    <Import Project="LIB.props" />
+    <Import Project="Link.props" />
+  </ImportGroup>
+
+</Project>