Show summary and warnings based on max_pages settings : Nano

[ajinkyaraj-23]

• [ ] Need to keep track of number of pages displayed
• [ ] check the max_pages settings and when pages exceed this values: ( Common for nano and stax)
• [ ] Parse the operations and calculate the summary of operations but do not display pages (Common for nano and stax)
• [ ] show too many pages warning and then warning pages from Ledger ( for nano )
• [ ] show summary page (Nano)
• [ ] Allow the user to sign.