This commit:

 - adds support for parallel builds (the possibilities of building parts
   of sqlite3 in parellel are limited, but there is no downside)

 - adds a CVE/CPE ID

 - Removes useless "=1" from -D[EFINES]

 - Adds --disable-debug (default anyway, just makes it explicit), put
   --disable-static-shell up top to sort the list alphabetically

 - Saves one INSTALL_DIR line in the end

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>