Setting up a central CLR stored procedure / function respository library for internal stored procs in other databases to use?

Question

I would like to use code that I developed in C# CLR to be used in all of the databases on the system so that I don't have to set each to trustworthy and turn CLR on and keep a bunch of the same code inside each one.

Is there a best way to do this from an administrative and security standpoint? The CLR functions are very basic like string breakers, email validation, url en/decode, base64, and etc. I would like only the dbo schema in each database to be able to access the functions.

1. Is there any simple way to do this?
2. Also I am not clear if the CLR dll is embedded and if I move the database, it tags along, or do I have to move the dll as well.

Thanks