Add ability to customize ssl mode settings

[thereisnosun]

According to https://mariadb.com/kb/en/mysql_optionsv/ MariaDB supports TLS enforcing in its own way. So the idea behind this PR is to keep the same interface for MariaDB based clients, but behind the scenes handle it accordingly.(MariaDB gets its own args set, instead of ssl_mode dict supported by MySQL).

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (9953e50) 86.48% compared to head (25bc72c) 86.48%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #475   +/-   ##
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  Coverage   86.48%   86.48%           
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  Files           7        7           
  Lines         555      555           
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  Hits          480      480           
  Misses         75       75           

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[lgtm-com]

This pull request introduces 1 alert when merging d497312 into 24aaa72 - view on LGTM.com

new alerts:

• 1 for Implicit function declaration

[dbussink]

I'm very much interested in having something like the changes here committed to allow for using MariaDB with strict server certificate validation (the equivalent of VERIFY_IDENTITY) but I think the changes here as is have some issues.

If there's anything I can do to help here, or to open up a separate PR, I'd love to help out.

[lgtm-com]

This pull request introduces 1 alert when merging 6cdf275 into 6979a47 - view on LGTM.com

new alerts:

• 1 for Implicit function declaration