Modified sqlite3_wrapper.c to make compilable with i686-pc-mingw32-gcc

* To avoid the following linkage error:

        sqlite3_wrapper.o:sqlite3_wrapper.c:(.text+0x9a): undefined reference to `SHGetFolderPathAndSubDir'
Merge pull request #3 from micclly/modify-wrapper-for-i686-pc-mingw32-gcc

Modified sqlite3_wrapper.c to make compilable with i686-pc-mingw32-gcc