Add tasks for all the new languages

Task/Truncate-a-file/Lasso/truncate-a-file.lasso

@@ -0,0 +1,19 @@
+define file_truncate(path::string, size::integer) => {
+
+	local(file = file(#path))
+
+	fail_if(not(#file -> exists), -1, 'There is no file at the given path')
+	fail_if(#file -> size < #size, -1, 'No point in truncating a file to a larger size than it already is')
+
+	#file -> setSize(#size)
+
+}
+local(filepath = '//Library/WebServer/Documents/Lasso9cli/trunk/testing/lorem_ipsum_long.txt')
+
+stdoutnl(file(#filepath) -> readbytes)
+stdoutnl('Original size: ' + file(#filepath) -> size)
+
+file_truncate(#filepath, 300)
+
+stdoutnl(file(#filepath) -> readbytes)
+stdout(file('Truncated size: ' + #filepath) -> size)