Cookie only set when another cookie has required value

[kklecho]

Rationale: With the cookie law, the cookie should not be set by default but only after the user agrees cookies.

Suggested solution:

1. Add option called cookies_accepted_cookie_name # what is the cookie name that stores user consent or denial
2. Add option called cookies_accepted_cookie_value # what value the cookie has to hold for the mobile detect to be allowed to set it's own cookies
3. Change code logic to only set / check the device view cookie when cookie configured in 1. has the value configured in 2.

[tattali]

Hi, thank you for your request! Would you like to create a pull request that handles this functionality?

Thank you so much!