Remove the old infrastructure for creation of ndbinfo tables and
views, replacing it with a data dictionary bootstrap routine
modeled after the performance_schema bootstrap from wl#7900.

Remove all the generated text supporting ndbinfo tables from
scripts/mysql_system_tables.sql, along with the CMake code in
scripts/ that ensured that it was present, and the patch_file.cc
utility program that was used to maintain it.

Remove the ndbinfo_sql utility program, but move its source file
to storage/ndb/plugin/ha_ndbinfo_sql.cc and compile it as a part of
the ndbinfo storage engine. This results in some NDB kernel code
(kernel/vm/NdbInfoTables.cpp) being built as part of mysqld,
requiring some minor code changes under storage/ndb/kernel/ to meet
the compilation requirements there.

Add a new DD property, NDBINFO_VERSION, to store the version number
of the currently installed ndbinfo schema. Re-use the MySQL server
version number to represent the ndbinfo version. If the stored
NDBINFO_VERSION is less than the current version (or the server
was started with --upgrade=FORCE), all ndbinfo tables and views
will be dropped and recreated.

In sql/dd/ndbinfo_schema/init.cc implement a new bootstrap routine
dd::ndbinfo::init_schema_and_tables(), which is called from mysqld.cc
during server startup, and then calls in to the ndbinfo handlerton
to fetch the current table and view definitions.

The ndbinfo plugin supplies both base tables and views, so in
sql/plugin_table.h extend class Plugin_table with a derived class
Plugin_view.

Testing for the work in mtr is accomlished by scanning the server
log file for "upgrading" or "not upgrading" messages, as appropriate,
in the existing tests ndb.ndbinfo and ndb.ndbinfo_upgrade. Also in
test ndb.ndbinfo, the query "SHOW CREATE TABLE processes" is replaced
with a "SELECT view_definition from information_schema.views" query,
to filter out the client character set and connection information
from view creation time.

Change-Id: I5b85128093e2eea592c4bb28ffb2d7dc08fd21d1