Add initial visual studio project files and fix the win32 build

Win32 has been rotting for a while. This patch adds vs17 build files
as well as fixing up all build errors that have accumulated.
There are still build warnings but those can be addressed in a followup
patch.

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>

win32/libiscsi/libiscsi.vcxproj.filters

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{38246570-1DA0-489E-920A-20A22AAAB787}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{7F9950EA-C34C-4898-8D50-DF2069176D4B}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\lib\*.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\include\*.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="..\..\lib\libiscsi.def" />
+  </ItemGroup>
+    <ItemGroup>
+    <ResourceCompile Include="version.rc" />
+  </ItemGroup>
+</Project>