Updated sqlite3 preparatory to adding the submodule wxSwlite3

Then got cold feet about wxSqlite3

.gitignore

@@ -1,3 +1,4 @@
+sqlite3/sqlite-doc/
 *.bat
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.

ISqlit3Impl.cpp

@@ -14,7 +14,7 @@
 #include <memory>       // for shared_ptr, unique_ptr
 #include <span>
 #include "ISqlite3.h"
-#include "sqlite3.h"
+#include "sqlite3/sqlite3.h"
 
 static auto error_message(int rc, sqlite3* pdb) {
 	return std::string("Sqlite3 Error: ") + sqlite3_errmsg(pdb) + ". Sqlite3 error number=" + std::to_string(rc);

wallet.vcxproj

@@ -132,7 +132,7 @@
     <ClInclude Include="rotime.h" />
     <ClInclude Include="secrets.h" />
     <ClInclude Include="slash6.h" />
-    <ClInclude Include="sqlite3.h" />
+    <ClInclude Include="sqlite3/sqlite3.h" />
     <ClInclude Include="stdafx.h" />
     <ClInclude Include="welcome_to_rhocoin.h" />
   </ItemGroup>
@@ -157,7 +157,7 @@
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
     </ClCompile>
-    <ClCompile Include="sqlite3.c">
+    <ClCompile Include="sqlite3/sqlite3.c">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
     </ClCompile>