Add tasks for all the new languages

Task/Roman-numerals-Encode/ERRE/roman-numerals-encode.erre

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+PROGRAM ARAB2ROMAN
+
+DIM ARABIC%[12],ROMAN$[12]
+
+PROCEDURE TOROMAN(VALUE->ANS$)
+LOCAL RESULT$
+    FOR I%=0 TO 12 DO
+        WHILE VALUE>=ARABIC%[I%] DO
+            RESULT$+=ROMAN$[I%]
+            VALUE-=ARABIC%[I%]
+        END WHILE
+    END FOR
+    ANS$=RESULT$
+END PROCEDURE
+
+BEGIN
+!
+!Testing
+!
+   ARABIC%[]=(1000,900,500,400,100,90,50,40,10,9,5,4,1)
+   ROMAN$[]=("M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I")
+   TOROMAN(2009->ANS$) PRINT("2009 = ";ANS$)
+   TOROMAN(1666->ANS$) PRINT("1666 = ";ANS$)
+   TOROMAN(3888->ANS$) PRINT("3888 = ";ANS$)
+END PROGRAM