Add tasks for all the new languages

Task/Text-processing-2/Sidef/text-processing-2.sidef

@@ -0,0 +1,14 @@
+var good_records = 0;
+var dates = Hash();
+
+ARGF.each { |line|
+    var m = /^(\d\d\d\d-\d\d-\d\d)((?:\h+\d+\.\d+\h+-?\d+){24})\s*$/.match(line);
+    m || (warn "Bad format at line #{$.}"; next);
+    dates{m[0]} := 0 ++;
+    var i = 0;
+    m[1].words.all{|n| i++.is_even || (n.to_num >= 1) } && ++good_records;
+}
+
+say "#{good_records} good records out of #{$.} total";
+say 'Repeated timestamps:';
+say dates.to_a.grep{ .value > 1 }.map { .key }.sort.join("\n");