libnatpmp: new port in net

[edilmedeiros]

Description

libnatpmp is a dependency for bitcoin core for folks that are building from source. The current bitcoin port does not support libnatpmp. This port opens the possibility of adding a new feature to the bitcoin port.

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 12.7.1 21G920 x86_64
Xcode 14.2 14C18

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?
• referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint --nitpick?
• 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?

Additional info

Bitcoin Core v26 was successfully compiled from source and tested with the library provided by this port.

[herbygillot]

Thanks @edilmedeiros