…ser_test

setparser_test_common.h includes the tests for both
setparser_test2.cpp and setparser_test3.cpp

Disabling jemalloc from TAP tests it saves around 5MB per binary

Also renamed proxysql_find_charset_collate() in proxysqlTap_find_charset_collate()

Added set_query() to change the query.
parse1v2() is now able to only once:
- generate the pattern
- compile the regex

If parse1() or parse1v2() is not able to parse the whole query,
it doesn't return any result (thus causes an error)

Variable mysql-set_parser_algorithm defines which algorithm is used by SetParser
for the parsing of SET statements.
If value is 1: parse1() is used
If value is 2: parse1v2() is used

parse1v2() allows also the using a single SetParser per MySQL_Thread to
process all SET statements. Regex is compiled only once.

set_testing-240-t was also modified to test both algorithms

…-4268