astrodatagui: StarsDB: add getStarAltNames function

main/astrodatagui/db/StarsDB.py

@@ -142,6 +142,13 @@ class StarDB():
                                               sequence ASC""")
         return res.fetchall()
 
+    def getStarAltNames(self, mainName):
+        res = self.dbCursor.execute(f"""SELECT altName FROM starnames
+                                        WHERE mainName = \"{mainName}\"
+                                        ORDER BY
+                                              altName ASC""")
+        return res.fetchall()
+
     def getStarInfos(self, mainName):
         res = self.dbCursor.execute(f"""SELECT spType, rotVel, rotVelUnit, dist, distUnit
                                         FROM starInfo