Add tasks for all the new languages

Task/Fork/Lasso/fork.lasso

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+local(mydata = 'I am data one')
+
+split_thread => {
+	loop(2)	=> {
+		sleep(2000)
+		stdoutnl(#mydata)
+		#mydata = 'Oh, looks like I am in a new thread'
+	}
+}
+
+loop(2)	=> {
+	sleep(3000)
+	stdoutnl(#mydata)
+	#mydata = 'Aha, I am still in the original thread'
+}