Add myqsl username and password config
Improve current database test
Add mysql query and connect functions
Add test for table creation
Add teardown and fix mysql error
Translated using Weblate (Korean)

Currently translated at 73.5% (1918 of 2609)
removed dead code
removed dead code
initialization not required
added comment to describe the usage
variable never used
dead code removed
added method PMA_getNumberOfFieldsFromRequest
put similar things together
added method PMA_getTableCreationQuery
phpcs errors corrected
PMA_SQLPrettyPrint distorted the query in monitor analyzer, bug#4054
Translated using Weblate (Korean)

Currently translated at 73.6% (1919 of 2609)
Merge remote-tracking branch 'origin/QA_4_0' into QA_4_0
Selenium tests for table browse functions