Add tasks for all the new languages

Task/Almost-prime/Sidef/almost-prime.sidef

@@ -0,0 +1,17 @@
+func is_k_almost_prime(n, k) {
+    for (var (p, f) = (2, 0); (f < k) && (p*p <= n); ++p) {
+        (n /= p; ++f) while p.divides(n);
+    }
+    n > 1 ? (f.inc == k) : (f == k)
+}
+
+5.times { |k|
+    var x = 10
+    say gather {
+        Math.inf.times { |i|
+            if (is_k_almost_prime(i, k)) {
+                take(i); (--x).is_zero && break;
+            }
+        }
+    }
+}