Proposed commit message
```
databases/py-MySQLdb: Fix build with MariaDB 10.2.7
With MariaDB 10.2.6 the Connect/C is updated to ~3.0. This means the C interface changed slightly and some functions are changed.
- Replace direct struct access with accessor in _mysql.c
- Add LICENSE/LICENSE_FILE
- Strip Binaries
- Remove conflict with itself
PR: 219797
Reviewed_by: sunpoet, koobs, brnrd
Submitted by: sirl33tname@gmail.com
Approved by
Differential_Revision: https://reviews.freebsd.org/D11054
```