[WIP] Add mysqlclient instrumentor support for sqlcommenting#6

tammy-baylis-swi wants to merge 4 commits intosqlcommenting-mysql-drivertammy-baylis-swi/opentelemetry-python-contrib:sqlcommenting-mysql-driverfrom

mysqlclient-sqlcommenttammy-baylis-swi/opentelemetry-python-contrib:mysqlclient-sqlcommentCopy head branch name to clipboard