Add v.in.geonames algorithm

python/plugins/processing/algs/grass7/description/v.in.geonames.txt

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+v.in.geonames
+Imports geonames.org country files into a GRASS vector points map.
+Vector (v.*)
+ParameterFile|input|Uncompressed geonames file from (with .txt extension)|False|False
+OutputVector|output|Geonames

python/plugins/processing/algs/grass7/ext/v_in_geonames.py

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+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    v_in_geonames.py
+    ----------------
+    Date                 : March 2016
+    Copyright            : (C) 2016 by Médéric Ribreux
+    Email                : medspx at medspx dot fr
+***************************************************************************
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Médéric Ribreux'
+__date__ = 'March 2016'
+__copyright__ = '(C) 2016, Médéric Ribreux'
+
+# This will get replaced with a git SHA1 when you do a git archive
+
+__revision__ = '$Format:%H$'
+
+
+def processCommand(alg):
+    # v.in.geonames needs to use WGS84 projection
+    alg.commands.append('g.proj -c epsg=4326')
+
+    # Launch the algorithm
+    alg.processCommand()