Update func.c

更新到func.c的最后一个函数SQLITE_WSD FuncDef aBuiltinFunc[] 。
Merge pull request #45 from amy-lj/amy-lj&func

Update func.c
Merge pull request #46 from MinfeiZhou/master

update vdbe.c，vdbeaux.c，vdbeInt.h，sqliteInt.c
Merge pull request #23 from HuiLi/master

合并更新