updated README.md: changed occurrences of "obj2sqlite" to "obj2db" and added note about building with SQLite on Visual Studio.
updated README.md: changed occurrences of "obj2sqlite" to "obj2db" and added note about building with SQLite on Visual Studio.

chrisliebert/quick-3d,chrisliebert/quick-3d,chrisliebert/quick-3d,chrisliebert/quick-3d,chrisliebert/quick-3d