Integrate python mysqlclient wheel and provide default example using python310

[th0ma7]

Description

While working on ffsync PR #3849 I encountered the need to figure out how to create a myselclient python wheel. Work in this PR aims to address this and provide example on how to build it for future use.

MySQL forum discussion thread: https://forums.mysql.com/read.php?117,700582,700582#msg-700582

Checklist

• Build rule all-supported completed successfully
• New installation of package completed successfully
• Package upgrade completed successfully (Manually install the package again)
• Package functionality was tested
• Any needed documentation is updated/created

Type of change

• Bug fix
• New Package
• Package update
• Includes small framework changes
• This change requires a documentation update (e.g. Wiki)

[th0ma7]

@hgy59 I was also thinking of adding mysql-connector-c++ connector as better supported (from what I'm reading) and allows using OpenSSL.

[th0ma7]

This PR looks good for review and merge.

I wasn't able to migrate to mysql-connector-c++ (nor mariadb-connector-c++).
I'll open-up another PR to that effect with my other pending patches. Others might have clues to fix cross-compiling.