Add recipe for libexttextcat.
Add recipe for libexttextcat.

libreoffice tries to download this at build time, so I guess we should
have a port.

Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,nielx/haikuports,moochris/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,moochris/haikuports,haikuports/haikuports,nielx/haikuports,haikuports/haikuports,nielx/haikuports,moochris/haikuports