[TASK] Check Internet Availability v1.1

DESCRIPTION
This task includes different methods by which you can check if Internet access is available.

Notes:
- Thanks to @MadManX99 (Reddit) and @agnostic-apollo (Reddit) for helping on improving it.
- As ICMP traffic can be blocked/filtered by Google (as other servers too), you can use the following root servers sites: Site_1, Site_2.

CREDITS
@SmartPhoneLover
@MadManX99
@agnostic-apollo

CHANGELOG
- New: Added 'method 8' as a new way to test connection. (thanks @MadManX99)
- Other: Removed unused variables. (testing purposes)
- Other: Added root servers sites if you have problems with the default one included. (thanks @agnostic-apollo (Reddit) for the suggestion)

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