Add new ports committer (smyru)

Steps for new committers:
1. Add myself to authors
2. Update lists of developers and contributors
3. Add a news entry
4. Add my PGP key

Reviewed by:		0mp (mentor)
Approved by:		0mp (mentor)
Differential Revision:	https://reviews.freebsd.org/D56063

shared/authors.adoc

@@ -3243,6 +3243,10 @@
 :smpatel-email: smpatel@FreeBSD.org
 :smpatel: {smpatel-name} <{smpatel-email}>
 
+:smyru-name: Piotr Smyrak
+:smyru-email: smyru@FreeBSD.org
+:smyru: {smyru-name} <{smyru-email}>
+
 :snb-name: Nick Barkas
 :snb-email: snb@FreeBSD.org
 :snb: {snb-name} <{snb-email}>

shared/contrib-additional.adoc

@@ -1804,7 +1804,6 @@
 * Pieter Danhieux <mailto:opr@bsdaemon.be[opr@bsdaemon.be]>
 * Piotr Florczyk <mailto:p.florczyk@adminworkshop.pl[p.florczyk@adminworkshop.pl]>
 * Piotr Rybicki <mailto:meritus@innervision.pl[meritus@innervision.pl]>
-* Piotr Smyrak <mailto:piotr.smyrak@heron.pl[piotr.smyrak@heron.pl]>
 * Piotr Szerman <mailto:pmsz@tlen.pl[pmsz@tlen.pl]>
 * Pius Fischer <mailto:pius@ienet.com[pius@ienet.com]>
 * Pomegranate <mailto:daver@flag.blackened.net[daver@flag.blackened.net]>

shared/contrib-committers.adoc

@@ -335,6 +335,7 @@
 * {glebius}
 * {kensmith}
 * {des}
+* {smyru}
 * {sobomax}
 * {js}
 * {asomers}