sql: Implement insert

Also update movetoUnpacked implementation to handle invocation from
several more opcodes (used in INSERT-s).

Handle tarantool error messages in SQL engine

The caller of SQLite API-s MUST receive Tarantool error messages intact.
They were formerly coerced to generic SQLITE_ERROR.

sql: Implement delete

Inconsistent CPP defines in sqlite:opcodes.c

As usual, there're plenty of ifdef-s in sqlite code. Since internal
sqlite source files are also used to build tarantool glue layer, it was
inconvenient to pass the defines via sqlite library target properties in
CMakeLists, so they are put into sqliteConfig.h instead.

The later file wasn't included by (generated) opcodes.c, causing misery.

sql: update the new iterator API to the latest 1.7. Report gh-2425