Add tasks for all the new languages

Task/Substring-Top-and-tail/Lasso/substring-top-and-tail-1.lasso

@@ -0,0 +1,10 @@
+local(str = 'The quick grey rhino jumped over the lazy green fox.')
+
+// String with first character removed
+string_remove(#str,-startposition=1,-endposition=1)
+
+// String with last character removed
+string_remove(#str,-startposition=#str->size,-endposition=#str->size)
+
+// String with both the first and last characters removed
+string_remove(string_remove(#str,-startposition=#str->size,-endposition=#str->size),-startposition=1,-endposition=1)

Task/Substring-Top-and-tail/Lasso/substring-top-and-tail-2.lasso

@@ -0,0 +1,10 @@
+local(mystring = 'ÅÜÄÖカ')
+
+#mystring -> remove(1,1)
+#mystring
+'<br />'
+#mystring -> remove(#mystring -> size,1)
+#mystring
+'<br />'
+#mystring -> remove(1,1)& -> remove(#mystring -> size,1)
+#mystring

Task/Substring-Top-and-tail/Lasso/substring-top-and-tail.lasso

@@ -0,0 +1,13 @@
+local(str = 'The quick grey rhino jumped over the lazy green fox.')
+
+// String with first character removed
+string_remove(#str,-startposition=1,-endposition=1)
+// > he quick grey rhino jumped over the lazy green fox.
+
+// String with last character removed
+string_remove(#str,-startposition=#str->size,-endposition=#str->size)
+// > The quick grey rhino jumped over the lazy green fox
+
+// String with both the first and last characters removed
+string_remove(string_remove(#str,-startposition=#str->size,-endposition=#str->size),-startposition=1,-endposition=1)
+// > he quick grey rhino jumped over the lazy green fox