Support installation of different bundle formats

[anik120]

Support installation of different bundle formats in a single catalog.

operator-controller/controllers/operator_controller.go

Line 257 in d6aa5e9

"provisionerClassName": "core-rukpak-io-plain",

Proposed implementation:

*Lookup bundle's format via bundle property olm.bundle.mediatype
*Use a switch statement when choosing the Bundle + BD provisioner class names
If olm.bundle.mediatype is not found/unset, default to registry+plain
If olm.bundle.mediatype is "plain+v0", use plain+plain
If olm.bundle.mediatype is "registry+v1", use registry+plain
if unknown mediatype, fail

[everettraven]

/assign