iverilog: transfer maintainers

[bpdegnan]

Changed the maintainers to reflect those whom showed an interest.

Description

Removed the former maintainer as they are no longer active with Macports. Added myself and markemer as we have an interest in the package.

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 13.7.4 22H420 x86_64
Xcode 14.3.1 14E300c

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@padf for port iverilog.

[markemer]

This one may have to wait for a maintainer timeout, we could leave @padf in there actually. I forget if I have to file a ticket for this, I might. Let me look into that.

[bpdegnan]

@markemer I'm up for whatever is proper. Thank you for looking into this. Let me know what I have to do.