dev-db/myodbc: Add binary based ebuild from upstream

dev-db/myodbc: Add binary based ebuild from upstream

Rationale:  This package depends on non-public API calls to libmysqlclient.
It requires a lot of time and effort to keep patching this to not use those calls
or the library providers which vary from implementation to implementation.

Instead, use the upstream provided files for this rarely used package.
Most systems use their native library calls instead of ODBC these days.

Package-Manager: Portage-2.3.6, Repoman-2.3.2