pin the utf8 byte array from the string for prepare_v2.  untested.  also unsure about perf implications.
pin the utf8 byte array from the string for prepare_v2.  untested.  also unsure about perf implications.

loqu8/SQLitePCL.raw,loqu8/SQLitePCL.raw,ericsink/SQLitePCL.raw,loqu8/SQLitePCL.raw,PKRoma/SQLitePCL.raw,loqu8/SQLitePCL.raw