add more import examples

zokrates_cli/examples/imports/bar.zok

@@ -1,2 +1,5 @@
+struct Bar {
+}
+
 def main() -> (field):
 	return 21

zokrates_cli/examples/imports/baz.zok

@@ -1,2 +1,5 @@
+struct Baz {
+}
+
 def main() -> (field):
 	return 123

zokrates_cli/examples/imports/foo.zok

@@ -1,4 +1,9 @@
+from "./baz" import Baz
+
 import "./baz"
+from "./baz" import main as my_function
 
 def main() -> (field):
+	field a = my_function()
+	Baz b = Baz {}
 	return baz()

zokrates_cli/examples/imports/import.zok

@@ -1,5 +1,11 @@
+from "./bar" import Bar as MyBar
+from "./bar" import Bar
+
 import "./foo"
 import "./bar"
 
 def main() -> (field):
+	MyBar my_bar = MyBar {}
+	Bar bar = Bar {}
+	my_bar == bar
 	return foo() + bar()