Add tasks for all the new languages

Task/Pascals-triangle/ERRE/pascals-triangle.erre

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+PROGRAM PASCAL_TRIANGLE
+
+PROCEDURE PASCAL(R%)
+  LOCAL I%,C%,K%
+    FOR I%=0 TO R%-1 DO
+      C%=1
+      FOR K%=0 TO I% DO
+        WRITE("###";C%;)
+        C%=(C%*(I%-K%)) DIV (K%+1)
+      END FOR
+      PRINT
+   END FOR
+END PROCEDURE
+
+BEGIN
+  PASCAL(9)
+END PROGRAM