General Improvements / Fixes

TagUI is a general purpose tool for automating web interactions

• add recommended resources section in readme developers reference
• update sample flows 6_datatables, add misc examples with 9_misc
• sanity check for prevention of shell code injection by web service
• add license file for php websocket just in case online url removed
• fix for loop for number variable to be correctly accessed in loop
• fix automation exit status display issue with some types of loops