Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/src/tool/build-shell.sh

+#!/bin/sh
+#
+# This script demonstrates how to do a full-featured build of the sqlite3
+# command-line shell on Linux.
+#
+# SQLite source code should be in a sibling directory named "sqlite".  For
+# example, put SQLite sources in ~/sqlite/sqlite and run this script from
+# ~/sqlite/bld.  There should be an appropriate Makefile in the current
+# directory as well.
+#
+make sqlite3.c
+gcc -o sqlite3 -g -Os -I. \
+   -DSQLITE_THREADSAFE=0 \
+   -DSQLITE_ENABLE_VFSTRACE \
+   -DSQLITE_ENABLE_STAT3 \
+   -DSQLITE_ENABLE_FTS4 \
+   -DSQLITE_ENABLE_RTREE \
+   -DHAVE_READLINE \
+   -DHAVE_USLEEP=1 \
+   ../sqlite/src/shell.c \
+   ../sqlite/src/test_vfstrace.c \
+   sqlite3.c -ldl -lreadline -lncurses