Add termux sample

Author: lupyuen

termux/hello_world.zig

@@ -10,8 +10,6 @@ pub fn main() !void {
     // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
     std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
 
-    std.debug.print("c.tgui_connection_create={}", &c.tgui_connection_create); ////
-
     // Create a connection to the plugin
     var conn: c.tgui_connection = null;
     if (c.tgui_connection_create(&conn) != 0) {