Improve ComponentType and OrchestrationType enums

[ptzianos]

We need to convert these enums into string enums and make sure that they are safe and can't have random values, along with the fact that they should be marshaled/unmarshalled correctly. We can do this easily by using this project: https://github.com/abice/go-enum

which can be invoked as a docker container as follows:

docker run -w /app -v $(pwd):/app abice/go-enum --file /app/pkg/types/v1/models.go --sqlnullstr --sql --mustparse --marshal

this way we can have more reasonably structured enums.