Add tasks for all the new languages

Task/Inheritance-Single/Comal/inheritance-single-1.comal

@@ -0,0 +1,33 @@
+       STRUC Animal
+           DIM Species$ OF 20
+       ENDSTRUC Animal
+
+       STRUC Dog
+              INHERIT Animal
+              DIM Race$ OF 20
+              FUNC New CONSTRUCTOR
+                     Species$="Dog"
+              ENDFUNC New
+       ENDSTRUC Dog
+
+       STRUC Cat
+              INHERIT Animal
+              DIM Race$ OF 20
+              FUNC New CONSTRUCTOR
+                     Species$="Cat"
+              ENDFUNC New
+       ENDSTRUC Cat
+
+       STRUC Lab
+              INHERIT Dog
+              FUNC New CONSTRUCTOR
+                     Race$:="Lab"
+              ENDFUNC New
+       ENDSTRUC Lab
+
+       STRUC Collie
+              INHERIT Dog
+              FUNC New CONSTRUCTOR
+                     Race$:="Collie"
+              ENDFUNC New
+       ENDSTRUC Collie

Task/Inheritance-Single/Comal/inheritance-single-2.comal

@@ -0,0 +1,5 @@
+(defclass animal ()       ())
+(defclass dog    (animal) ())
+(defclass lab    (dog)    ())
+(defclass collie (dog)    ())
+(defclass cat    (animal) ())

Task/Inheritance-Single/Comal/inheritance-single-3.comal

@@ -0,0 +1,5 @@
+(defstruct animal)
+(defstruct (dog    (:include animal)))
+(defstruct (lab    (:include dog)))
+(defstruct (collie (:include dog)))
+(defstruct (cat    (:include animal)))

Task/Inheritance-Single/Comal/inheritance-single-4.comal

@@ -0,0 +1,9 @@
+;;; ASN.1 serialization logic specialized for animal class
+(defmethod serialize-to-asn-1 ((a animal))
+  #| ... |#
+  )
+
+ ;;; casually introduce the method over strings too; no relation to animal
+(defmethod serialize-to-asn-1 ((s string))
+  #| ... #|
+  )

Task/Inheritance-Single/Comal/inheritance-single-5.comal

@@ -0,0 +1,6 @@
+	TYPE
+		Animal = ABSTRACT RECORD (*  *) END;
+		Cat = RECORD (Animal)  (*  *) END; (* final record (cannot be extended) - by default *)
+		Dog = EXTENSIBLE RECORD (Animal)  (*  *) END; (* extensible record *)
+		Lab = RECORD (Dog)  (*  *) END;
+		Collie = RECORD (Dog)  (*  *) END;